I have been here for a while and though I mostly lurk, I have nc for this. I could really use an outside point of view and some impartial advice. This is quite long, sorry!
DH and I are both from the same European country. We moved to the UK 5 years ago when DH was sent here as an expat with his company. At the time we already had dd1 who was 9 months and is now almost 6. We now also have ds (3) and dd2 (12 weeks).
I never really wanted to come to the UK as I wanted to stay in my own country close to family. Important to know also is that I grew up in the UK as my parents moved here when I was a child. I have since studied in London and moved on to live in the US and Spain for a while.
DH grew up in a small town in our country and studied in the local university and until we moved 5 years ago had never loved abroad.
When we left our country I told him I was willing to go for 2 years as I felt it wasn't fair to stop him. After 2 years I conceded that we would stay until dd would start primary school in our country. That would be this September and we still haven't made plans to go back. He is not really interested and is not making an effort to look for work there. My career has in the meanwhile stopped, if not gone backwards, which wouldn't have happened in my home country.
Today he heard the news that his company may send him back for a few years. I am thrilled and know that once we return, I will not want to move again. He doesn't really want to and I believe he sees himself leading the expat life forever. The idea alone makes me feel deeply unhappy.
So where do we go from here? We clearly want different things from life. I don't want to be the person to stand in the way of his dreams. At the same time, I don't want to continue being somewhere I am not truly happy. Don't get me wrong, life in the UK as an expat is very privileged. We live in a beautiful house and our kids go to a great private school. But I don't actually care much about those things. I just want to enjoy spending time with my family. I want my kids to grow up knowing their cousins and extended family. I would happily live in a small house to enable that.
Sorry this is so long but I hope to get my head around what to do. Should I talk to him about this? If he doesn't want to settle at home, do I go alone? I do love my DH. He is a very good man and wants the best for us all. We just don't agree on what the 'best' is. 
What do I do?