The TT3 budget is provided in large part by someone else, and the SSE budget is probably massively bloated due to all the things that desperately need to be addressed with the ride system. I know people want a truly stunning Imagination, and that would obviously be great, but I also think people continue to overestimate the popularity of Figment. I feel Disney knows his pull is limited and is probably looking to be slightly conservative for that reason. Honestly, people will perhaps hate me for saying this, but I wouldn't mind something more in the style of Runaway Railway, created almost exclusively with projections, mostly because I find almost none of the animatronics or sets in the current iteration to be interesting in the slightest.