What really gets me is the government's lack of exit strategy. They might have one, but they certainly aren't being transparent about it.
What I really want is to see them announce this kind of plan very soon:
"We will be able to relax the country to Tier 1 status once XXX people in the XXX groups have been vaccinated. We currently anticipate this will happen by XX/XX/21.
Then all COVID-19 restrictions put in place since March 2020 will cease once XXX people in XXX groups have been vaccinated. We anticipate this to be XX/XX/21.
We also require proof that vaccination lowers serious outcomes of COVID by XXX using XXX measure, and we will have this data by XX/XX/21. We do not expect this to differ from our original projections that the vaccine is effective. All data on this will be released to the general public and media for scrutiny.
Once these criteria have been fulfilled we will relax the restrictions as promised, and this roadmap will be enshrined in a parliamentary vote to be debated this week.
We will provide updates on the progress on all these targets on a weekly basis in our briefings".
Obviously we aren't going to get anything like this, and we will be kept in the dark over the next few months.
I would refer you to the excellent COVID Actuaries Response Group, who have produced the attached paper which shows all the vaccination priority groups, the percentage of COVID-19 deaths for each group, the number of people in each group, and the estimated number of vaccinations required to prevent one death.
If you take groups 1- 4, they account for 88% of COVID deaths, and there are an estimated 13.4 million people in each group.
If you vaccinate people at the rate of 1.5 million per week, it would take just under 9 weeks to vaccinate all the people in groups 1 -4. This would take us to the second half of March, which coincides with the anniversary of the first lockdown.
Also by the end of March it is likely that the current wave of infections will have peaked, and pressure on the NHS will have eased.
Of course there are a few caveats with these figures, in that they are estimates, and no-one knows exactly how many people we are going to be able to vaccinate per week.
The strategy of giving people the second dose 12 weeks after the first one will enable more people to get a reasonable level of protection in a shorter period of time.
I suspect that the government does have the strategy that you outline in mind, and will start to ease restrictions once sufficient numbers of people in the highest risk categories have been vaccinated.
They probably do have dates in mind for easing of restrictions, but don't want to publish them yet in case things don't go to plan, or if it induces the public to be less careful. (Rather like the introduction of compulsory masks in many setting has made some people less careful about social distancing)
So if you ask me what I think will happen is that the whole country will move into Tier 3 late January/early February (as a bribe to MPs for renewing the tier regulations, and providing the figures are not still rising)
Then everywhere will move into Tier 2 about a month after that, possibly with a relaxation on the rules that say pubs must serve substantial meals.
Then some time after Easter everywhere will move to Tier 1, and then over the spring and summer rules are further relaxed.
To prevent another wave of infections in the autumn, we need to decide who should be prioritised for vaccination, amongst those who haven't received the vaccine.
Since the increase in cases started in September after schools went back, and then accelerated after the return of university students, I would suggest that people working in the education sector should be prioritised for vaccination over the summer.
Edit : I see that
Solent & Wessex has beaten me to it with the paper from the COVID Actuaries Response Group.
I have a degree in Actuarial Mathematics & Statistics, so this area of research interests me.