In my mind the stats on hospital admissions is a clearer indication of Covid spread. It is a far more accurate measure than the simple tests due to their reduced accuracy and haphazard use.
Vaccination is a major game changer. It will allow us to return to some form of normality albeit accepting a risk level that is low. It is unlikely to be zero!
Mitigating factors in the UK will be people not having vaccinations and irresponsible behaviour. It will take time to readjust back. How will outbreaks be dealt with? Localised task forces?
Travel.....UK will open back up. Foreign travel? Depends entirely on how the visited countries deal with their pandemic.
There is light at the end of the tunnel, faint at the moment but the dimmer switch is being turned. Our behaviour is the key backed up by clear scientific evidence.