More specifically, they're renaming Kaladesh. Previous setting and part of the upcoming
pod-racing Aetherdrift set.
Apparently Kaladesh translates to 'Dark Land' which is 'problematic' because it is ostensibly a setting primarily featuring pajeets.
More info if you so desire it:
The easiest solution would've been to not take a 1:1 translation and have a linguistics nerd come up with something same-y sounding rather than just airdropping Hindi unaltered.
I will maintain that the Kaladesh setting is the stupidest of the sets I've been going through (I'm up to Outlaws of Thunder Junction) and looking at cards and how the game has changed. An India-themed setting
could be really cool (in terms of mythology, lore, etc.) but it just comes off as the most saccharine, milquetoast pandering expansion just from reading flavor text/looking at card art