I haven’t seen anything, but I’m assuming some thought must be being given to this, whether by the universities or the govt?. DS is in catered accommodation and I can’t believe that that that would keep on going all over the Christmas period. I’m not a Christmas obsessive - DS is just coming to the end of his first lockdown period, and also can’t come home for reading week as originally planned as we are Tier 2. But I have told him (rashly?) that it will all be ok for Christmas.
I guess the way it would currently work would be to do another period of isolation - which hopefully will be just 7 days by then - and then come and re-join our household. He is in Tier 1, so coming home is not a problem for him, its us that cannot mix households ATM.
I suspect its all too far away to strategise about at the moment as we will likely have several different iterations of lockdown restrictions before then, just idle musings.