daannzzz,
in my opinion, compared to the last four years, the current investment in rides is nothing short of amazing. There will be no less than three e-ticket rides opening within three years (M:S, Soarin', EE), in addition to the new car stunt show and a handful of smaller projects. I think it's unrealistic for them to do much more than that, in fact, if you had told me about this attraction lineup a year or two ago, I would have probably accused you of "wishful thinking".
Naturally, there is lots that needs to be done still - the parades are getting old, Illuminations is getting old, Fantasmic is getting old, maintenance is still not where it should be, guest service is not as great as it used to be, etc. Especially the latter things Disney does not seem to realize that these are significant.