I’d not go quite that far yet, but if this years major events like the Euros & Olympics, Wimbledon etc all end up behind closed doors, the vaccine simply isn’t likely to offer anything remotely resembling the game changer politicians have continually promised it’ll be, anytime soon
Specifically on the events referenced above I can't see any of them taking place with spectators in attendance, and wouldn't be surprised to see the Olympics cancelled or deferred again until 2022.
I can't see "back to normal" happening until 2022 at the earliest. It's all very well things beginning to re-open, but that and "back to normal" are very different things.
For example queuing outside shops unless they're at physical bursting point isn't normal. Limits on numbers of different household members in hospitality venues isn't normal. Compulsory masks on public transport, in shops etc isn't normal. Retail venues refusing cash isn't normal. Giving personal details for test and trace isn't normal. Seeing TV programmes with characters removing masks and stuffing them in their pockets or having them hanging off their ears isn't normal (not to mention the terrible example it sets to its audience in terms of what should be done in terms of hand washing etc). And that's just a few examples off the top of my head.
As I've stated before I really hope beyond hope that I'm wrong, but at present there's very little to convince me that 2021 will be anything other than a total washout and I'm already (on 23rd January) focussing on next year.