A lot of people have been addressing the fact that Kaladesh, despite giving the appearance of at least partially being an Indian set, has absolutely no Indian mythology or culture at all, most notably in
this blog post. The issues are:
* Very few Western properties choose to depict anything based on Indian mythology, and Kaladesh made people hope that Magic would do it in a respectful way.
* Instead, Kaladesh's Indianness is used just for window dressing. Nothing about the world or culture is particularly Indian. It's clear they did this to avoid controversy, but being colorblind isn't good either.
* It's very unlikely that after making Kaladesh a "20% Indian world", they'd make another world that's actually based on Indian mythology.
MaRo has said that people at Wizards have read that post and have been discussing it a lot, and
he asks for more responses here.
My opinion of the blog post is that the intercutting with stories of his life growing up was laying it on a bit thick, but he makes a really good point. In particular, I had previously assumed that Kaladesh was too positive to have demons and that's why we had no rakshasas, but nope, we have a plain old demon. And the gremlins could have very easily been swapped out for monkeys that go around destroying artifacts.
I think the most likely outcome is that with Return to Kaladesh, things will suddenly get a lot more Indian. There's an easy out for Wizards, in that this set is focusing mainly on Ghirapur and city life. We could easily have rakshasas, monkeys, nagas, and yes, bear people, if the return block chooses to leave the cities, or they decide to move in. After all, they did find a way for Return to Ravnica to suddenly have merfolk.