I wouldn't bet my vacation budget on this one. I seriously doubt any money will be going into DAK until they settle down and see results from Avatarland. IF that draws additional crowds that require more rides to keep happy, THEN maybe you could see something there - but I bet not until at least after the 50th.
Dinoland USA may be one of the least impressive lands in all of WDW, even if the theming is actually quite extensive. The whole Chester and Hester thing is clever but having your theme be a cheap roadside attraction ends up making your park look like a cheap roadside attraction - the most impressive bit of theming in the land is almost completely unnoticeable: All the plants in Dinoland USA are plants (or variants) that were around 60 million years ago according to fossil records.