I'm slow to check on things these days, so I've just now noticed that the park has confirmed that the announcement will be SDC's "Largest Investment Ever" according to screamscape and other sources. I haven't found where the park actually made this mention, but I trust screamscape didn't just make it up.
While the new FITH is a big ride, it obviously won't come close to their biggest addition to date by itself (unless the inside is really going to be Disney quality, which is my dream, but unlikely).
Many are speculating once again that this is the cusp of the resort announcement. I'll be a bit disappointed if it's not the case. We've been wondering when we would get ours since DW got their first, something like a decade ago now?