In my university, there is discussion of whether the fees for next year will change in response to how courses are delivered. It isn't so much about the actual teaching. I personally am not 'teaching' at all - as in I'm not delivering any lectures at the moment. But what I am doing is all the stuff that still has to be done whether students are physically on campus or not - marking, supervision and mentorship for dissertations, personal tutoring (which is particularly challenging in a time like this when students are needing so much more support), overseeing committees that support learning, dealing with academic misconduct (I've had a doubling in cases of academic misconduct in our department since the early days of covid because students are stressed and doing all sorts of stressed out foolish things to get themselves in hot water), all the extra IT support that goes into supporting online learning, supervision and tutoring. The actual front facing teaching is quite a small part of what you pay for when you pay for university education.
That said, where cuts should be coming is from facilities costs (if the gym is closed, employees should be furloughed, and students shouldn't be paying for access to something they aren't accessing). Keep in mind that along with that comes the jobs of making working people who will not be able to survive on furlough. But it can also come from executive level salaries and it rightly should come from those who can afford to give a little bit back to support the budget.
That said, I expect if teaching goes online (which it likely will - we just finished a meeting where we discussed plans for term 1 to be online, and possibly even term 2 of next year, likely with some online component through until vaccine development - this is in a health sciences faculty, many of whom are actively involved in the UK's COVID response), then there will be some changes to fees. That said, if I was an undergraduate, I'm not sure if I wouldn't take a gap year and see what happened next year. I think the social and personal aspect of university is as important as the educational aspect and I wouldn't want to miss out on that.