Good thing Frozen was a Disney only production then, huh?
In all seriousness, I wouldn't mind it if they expanded behind Norway and had a section dedicated to Frozen with a family E-ticket as per an earlier post (the film was spectacular), but if you're gonna futz with Maelstrom, at most just update the animatronics and refurb the existing elements.
If they're unwilling to expand the pavilion (more than likely), they'll at least plug them into the princess dinner at Akershus, probably making them a staple with the other princesses revolving as they do now.
As for the Stave Church actually being an exhibit on the life and architecture as presented in the film, it makes me feel like they may be making an effort to move toward updates and additions for quality (I may be setting myself up for failure).
I have to say though - while I'm here - the area where you get off the boat may be one of my favorite exit areas in WDW