I hate to sound this pessimistic, but if they do away with IDF and don't give it a solid, thematically appropriate replacement, that may be where I throw in the towel. Might just have to acknowledge that Disney isn't trying to reach anybody like me (not saying that to make myself look good or smart or anything like that, just people who aren't particularly invested in most non-park IPs) and reallocate my money accordingly.
IDF getting an update? It'd be sad to see the last October 1, 1982 attraction finally get changed, but at least the tone, theme, and experience would still be intact. But IDF going to accommodate Ratatouille? I've honestly never watched Rat, it came out as I was graduating college and I as of yet still do not have children...not that adults can't or shouldn't enjoy it...so I don't really feel any attachment to it, so losing IDF for it would be a gut punch and arguably a worse one than losing Maelstrom, which I loved but could see the arguments about it needing to be refreshed.