Yes, clarification would indeed be a good thing. Frankly, I'd be very surprised if their plan is to allow people to see the originals since Durham, in particular, have always been very protective of those (as indeed they have a duty to be). Even in the 1980s when Northumberland used to allow original registers to be piled on top of each other on desks, Durham had gone down the microfilm-only line.
Again, surely the most rational solution would have been to continue with the MFs until there was a viable alternative. I can't imagine that space is an issue in their new home.