It could be the Pixar version of the D&F playhouse, seems temporary but kind of permanent. The size of the land is around 3x of playhouse. If they can do a bigger walkthrough than the Shanghai one with more Pixar IP, interactive features and
meet & greet, I think it is a good extension to TSL. The land may be enough for a dark ride. But rather than getting a single IP mini land or expand TSL with Toy Story Mania, having more IP in the park maybe better for merchandise selling. The cost shouldn't be too high and they can go for the dark ride option anytime they want to in the future.