I agree with those that think there'd be more hype if they were really doing away with it so soon.
That being said, I have serious concerns that one of these days these rumors are going to pan out, and the changes will be like most WDW has made as of late, that is they won't be for the better. Illuminations is currently my favorite nighttime show, and if they do away with it and create a worse show in its place that may be the dealbreaker for me. There have been a lot of recent changes that have left me questioning why I go back, and the destruction of Illuminations could very well be the last straw.