@LuluBellaBlue I have only read the first post and some comments after that but as a Muslim yes I believe Jesus peace be upon him will return.
For me the information comes from the Qur'an which is an unaltered book (in Arabic). In it there are verses related to Jesus peace be upon him, where God explains Jesus is a messenger like Abraham, Moses and Noah peace be upon them and not God or 3 in 1.
There is also mention of him in the hadith (sayings of the Prophet Muhammad peace be upon him) in great detail especially regarding the end of times.
I haven't watched the show, didn't know it was out yet but I have read people stating it feels like it is a way of misguiding and making a mockery. As I haven't seen it I can't say but I can share with you the Islamic perspective.
In brief, and very very brief, we are told of signs of the last day in the hadith. Every messenger was sent with signs to tell their people and warned against the one eyed liar.
In the hadith there is a lot of information about this one eyed liar. In Arabic he is called Dajjaal.
There are two messiahs. One is the true Messiah (Jesus peace be upon him) and one is the false Messiah (Dajjal/the anti-christ).
The series of events we are told is as follows that a time will come where it will be very difficult for a believer to practise their faith in public. It will be like holding onto burning coal. Believers will be seen as strangers so glad tidings for the strangers.
The time will get so bad that it is a time we probably don't want to be around then.
Before the coming of the Anti-Christ, there will be drought/famine for 3 years. Then the Anti Christ will appear. He is going to be the biggest trial on earth. He will spread mischief and he will also gain a lot of followers because you can imagine the dire state people will be in and the Anti Christ will be able to give food etc to people instantly. Apparently there is a seed being manufactured in some way that will allow a tomato to grow in a day or something but this is just something I read online and isn't part of the hadith but when we look at what's happening at farmers and them buying GMO seeds, their first year of harvest is great but then their land is killed off and they are unable to grow crops which is why so many are committing suicide, certainly in India this is the case. When the earth's nature fertile soil is being destroyed, you can imagine how we are inching towards that time of drought and famine and how when the Anti Christ comes with all his new technology or whatever he has, people will follow him as they will think he is the way to success.
He will claim to be a Prophet and then later on God.
As Muslims we are given a description on how he looks. He has one eye but the other eye is there but just looks like a squashed grape or something. He will have the word disbeliever written on his forehead which only a believer will recognise no matter what language they speak or read.
Before his arrival though, when the believers will be holding onto their religion like holding onto burning coal and the time will be so difficult for them, a man will be in Makkah by the Ka'bah praying. His name is Imam (leader) Mahdi. The believers will recognise him and make pledge to him to be their leader. He will refuse at first but eventually accept. He won't even know he is the leader until the time comes. He will be 40. He will lead the believers to some form of safety.
I've read comments about the Messiah series after the trailer was out and someone said it may be that they make Imam Mahdi to be the evil guy. I'm not sure if it played out like that as I haven't seen it as I said earlier.
Soon after is when Jesus peace be upon him will descend in Damascus. There is a description of how and what including him looking like he's just had a bath. At the time, the believers will be in congregational prayer so Imam Mahdi will tell Jesus peace be upon him to lead the prayer but he will decline as imam Mahdi is the leader. After that prayer is done, Jesus peace be upon him will lead the believers. He will eradicate tax etc.
He is the one who will win over the anti Christ who will first flee and then after be killed.
Jesus peace be upon him will not return as a Prophet, with new beliefs etc. He is a prophet and always will be but he will be a follower of the prophet who came after him and he will live a normal life and have children etc. Then the Gog Magog will come and destroy everything so the believes will retreat to the mountains with Jesus peace be upon him.
Now leading up to all of the above and amongst all of that there is mention of an increase in natural disasters, in fires etc. We are seeing that right now. As a Muslim I don't just see climate change but a sign of many signs of the end of times. Tall buildings and competing to make the tallest is also another big sign of the end of times.
As a Muslim I need to focus on my death more than the anti Christ because we are closer to our death than worrying about how to not get convinced by the Anti Christ but we are advised to read verses from the chapter of the Qur'an called Al Kahaf (the Cave) every Friday for protection against the Anti Christ.
We are also told he will have fire in one hand and water in the other but like everything else about him, he is a deceiver and we should choose the fire and not the water as it's a trick and choosing the fire will result in us entering gardens.
If we go back even further, we don't believe Jesus peace be upon him ever died. He is not Ever-Living like God because he will die eventually but when he was on the earth, they wanted to kill him, like people killed prophets before him. God protected him and so when the enemy came to get Jesus peace be upon him, God made that mana face resemble Jesus' face. Jesus was raised to heaven via the Angels.
The other people waiting outside for the man to bring Jesus, wondered why it took so long to bring Jesus out. So they went inside to fetch them both and saw their guy but they thought it was Jesus as now his face looked like Jesus. The guy obviously protested saying it's not me it's not me but they laughed at him and killed him.
Jesus is in the second heaven waiting for his appointed time to return and complete his mission.
There is so much information to share and it all links together but this is just a very brief summary to understand the Muslims view of Jesus peace be upon him returning.
Muslims do not believe he is God or the son of God but that he is a Messenger of God and he was born miraculously with just a mother. However this isn't difficult for God to do as He created Adam without a mother and father and Eve without parents too.
In Islam, Muslims call God Allah. Allah doesn't literally translate to God. It is an amazing word because you can't make it into a plural God's, you can't make it into masculine or feminine Goddess. It's just one diety worthy to be worshipped, with no partner, father or son or wife or anything. Just Allah.
When you translate the Bible to Arabic, the word for God used is Allah, something my Christian neighbours taught me.