I think the hope is progressively each wave gets less and less dangerous and if we avoid any new variants by late spring we could easily see something that resembles a pre-covid world by the middle of next year.
I would expect another booster to be required this time in 2022 and if the government have learned any lessons then it will be issued a good few weeks before Xmas so everyone has the best chance of getting through the holidays and businesses remain open. This seems to have been rushed, the vaccines need time to bed into the system and seeing I only had mine on the 20th of December it's going to be late Jan by the time it's started to fully function and by all accounts that will be too late given how this is ripping through the population.
I don't think that's true with the booster mate - as in it will do it's job against Omicron and that's protect you from illness and, in 75% of cases, any symptoms at all (because Omicron is less severe than the other strains so far).
But yeah, the vid I posted yesterday said 50% of any cold now in the UK will be Omicron. But look, it's been here two weeks, especially in London, and hospitalisations aren't looking terrible. If you're fit and healthy, have had the vaccines, I honestly don't think this is any to worry about. But obviously it's also better to be cautious and to help keep everyone safe and I actually think people have done that this Christmas.