BTW, considering what attractions they've closed and/or considered for removal, there should be a good amount of space left over even after Toy Story Land and Star Wars. This has been mentioned by others already. Doesn't necessarily mean anything given that it's not unprecedented for Disney to shut down attractions and leave the space bare forever (River Country, Wonders of Life, parts of Imagination etc), but I would hope they use all the land available to them. This park needs all it can get. And again I hope that includes more for Pixar as well. I'm finally somewhat optimistic that Star Wars at least is in good hands by now.
As we've discussed on this forum before, highly immersive and well themed environments are always welcome and a must. But I do expect good rides alongside them. Both are integral, otherwise we just end up (like Little Mermaid) with a pretty facade/queue and meh ride.