We've known that March 8th was the earliest date for schools for weeks.
We've known that schools are the priority to reopen - so, therefore, there will be no changes to anything else prior to March 8th.
We've known that schools reopening was heavily contingent on reaching key vaccination figures in the 1st 4 groups 3 weeks prior (ie Feb 15th) so that the data could be checked and analysed. Progress in this is variable - my area is still on group 4, projected to move to group 5 towards the end of next week, but country wide, we're on target.
We've known that it would take time to gather and analyse that data after the target was hit, but that the government would give two week's notice to schools to reopen when they had. For March 8th, that means Feb 22nd at the latest.
You have the exact thing you're asking for - a timeline of 'if this, then that.' You have the criteria, and you know when to expect the next steps to be given. We're not at those dates yet and nothing has gone wrong to need to change them, so there's no update.
Now, I personally question the sense or the point of reopening schools for two weeks pre-Easter, vax or no, because I think it risks muddying the impact data and us risking underestimating it when the holiday acts as a firebreak for it - but that's not the point.
The point is, we have as much of a time line and a plan as can reasonably be given in the current situation. This is honestly the first time it's felt like the government is listening to the science and proceeding cautiously. We all just have to be patient, and stop looking to speculation and twitter posts for information that isn't available yet.