Key phrase, "hopes to begin re-opening schools"
A lot will depend on the vaccine, hospital admissions, etc.
Political English to Plain English Translation:
If you are in the NW where hospital admission are peaking this week you are probably still buggered. So don't hold your breath if you live in an area where cases are still very high and hospitals are still up shit creek this week.
Also, we may not be able to reopen schools because we need to do the 4 priority groups still and we aren't 100% confident we have enough vaccine yet.
We know we have to start to look like we give a shit about teachers because enough people have moaned about it. So we are going to make a point of vaccinating all the teachers first to show how wonderful we are (rather than admit actually health and safety is quite important afterall and the unions have had a point all alongabout treating teachers like shit) - providing we have enough vaccination. So don't blame us if the schools are delayed - we are just being nice.
We however we reserve the right to use the row with AZ and the EU to give us a get out of jail free card if we don't reopen schools by the 8th 'because vaccines'.
Also see 'perfect scapegoat'.
HTH.