I've been wondering (and asking) the same thing.
Agree that nobody really seems to know. I've had 3 different versions from 3 different clubs and the above is a 4th!
However the common thread of agreement would.appear to be no relegation and a number of clubs (I've heard 1,2,3,4 and 5 mentioned?!?) going up and the rest staying at level 6.
And yes some sort of regional carve up then happens. Each draft version of this so far has been produced by someone with zero understanding of geography, locations or distances.....let alone county boundaries.
But don't fear, the student placement working alongside the McKinsey consultant at Twickenham are by far the best placed and most informed people to decide what happens in North East rugby.
We really should be grateful that they are willing to give some time to put us right and send us on the right path.