You mean Android Studio will be canned in 2018 max with a reasonable estimate of 2016-2017?
I wouldn't be even surprised if internally the AS team's financials are counted under the Playstore umbrella.
I still wouldn't trust a Google product to stick around, but these hints aren't a reliable oracle either.
It is a product launched in the hype cycle of AI. Google has plenty of other products (launched during hype cycles) that are gathering dust.
That's not a guaranteed signal that it will meet the same fate but its something strong enough to be wary of.