I saw one article where CamMac said they'd redo the chandelier and some of the other "problem spots" that got a lot of criticism when this production was in the UK, so hopefully that'll include the Red Death (or lack thereof). I'd also really appreciate it if they fixed the first unmasking scene -- as it is, the Phantom was composing his music, sans
mask, and Christine just walked over to him and saw the deformed side, and so he freaked out. Yeah, that seriously loses something there if she's not literally taking his mask off.
That said, the set/costume/blocking changes aren't really a dealbreaker for me if the cast is awesome. I loved the anniversary concert they did in Vienna last year even though there were no
sets or costumes -- everyone just wore evening clothes, and the Phantom didn't wear a mask at any point. (Neither did the Masqueraders.) But the cast was pretty much perfect, so I loved the production anyway. Though I admit I didn't get to see it live...