H, I think it might be going a bit far to say the twins' subjects. One is BSc and one is a BA.
Bristol is doing well in saying the university opens on 20 April. That does not mean there will necessarily be lectures but students live there. Some have no other homes to go to. One of my sons may well be staying up all holiday. It is not like a school or boarding school when you can just sent people home.
however check websites on a regular basis. My son saw the website said extensions for dissertations etc were being given. He screen shotted that. he asked for extra time quoting that. By the time his lecturer considered it Bristol's website did not say that but he could produce the screen shot - I think he was given an extra week and that one came home last night by the way - it is his twin who might stay up.
Actually I just checked not and I think it has changed since yesterday
Now says Key information you need to know:
"The University will deliver teaching online from Monday 20 April."
"Summer assessment will be online. If we can’t assess you online, we will make alternative arrangements.
Your School will contact you about plans for your assessments by Monday 30 March."
"If you are staying in halls or in off-campus accommodation in Bristol, please tell us via this online form so that we can provide advice and information.
All study, field or social trips overseas, as well as residential field trips in the UK are cancelled and we are inviting overseas placement students to return early.
The University will remain open while we deliver teaching online - accommodation, many learning facilities and services will remain open."
Mind you not different for one of my twins who even at school his teachers told me he might as well have done the lessons by correspondence course given his lack of speaking in class and he already watches a lot of the lectures on line.