Greetings first time poster and Welcome to WDWMAGIC!
Those are good suggestion however lets look at the situation. You have Belle at ETWB. Ariel at her grotto. Cinderella, Aurora, Tiana, and Jasmine going into PFH most likely. You have SW possibly going into that M&G area adjacent to where the mine train will be located.
Rapunzel seems to be getting a M&G area near her restrooms. Merida is still at that Fantasyland outdoor theater area. The best way to do this is to basically put Cindy, Snow, Aurora, and Jasmine in PFH. Put Tiana in the spot she's at now in Liberty Square. Put Merida and Pochahontas in the TST. Then you can put Anna (princess from Frozen) into the area Merida is in now. So you'll pretty much have a rotating cycle going on with these princess meet and greets except for the ones in PFH. Yep all we can do is wait and see what happens.