Maybe if they did something with pandas. 
Or maybe a movie based around a musician.
Iāve thought a spin off for A Bugās Life would be pretty cool. Like a prequel about how the circus bugs all got together (With a title like āThe Circus Lifeā). At the moment, itās just a fan fiction XD . A fan fiction in which I REALLY need to work on what their āyouthfulā characters were like.
A long, low dialogue film(similar to Wall-E) about a composer. And of course an Incredibles 2.
One with all frequent members of Pixar Planet in it It could be about how we change Pixar- in a good way, obviously.
There could be short films about us individuals, and what we get up to when weāre not obsessing over Pixar.
(This is just a lame idea btw)
Iād do a film on greek mythology, but different than the Hercules chain.
If I got the chance to make one film on mythology it would most likely be a modern day version of the kidnapping of Persephone and have all the gods be extremely modern in an urban settingā¦ Just one of my crazy ideas though 
If I was in charge of any animated film, Pixar or not, Iād probably make one set in the past. In American history or something. I dontā know if itād intrest other people, but I know it would intrest me!