If the Chinese start being independent in aero engines, then the Russians' own needs for defence (given they won't sell many SU-57's) won't keep NPO Saturn afloat. Russia needs customers, and Indians are turning to Western sources too. Syria, Algeria, Egypt and Africa OK for now, but who knows how long?
Already a lot of engine manufacturers in Ukraine (main source for Russian aero engines) turning to Western technology licensing or simply gone bankrupt. Look at Antonov. Where it was twenty years ago, and where it is now.
"In 2014, the Antonov produced and delivered only two
An-158 airplanes.
[17] This trend continued onto 2015, producing one
An-148 and one
An-158.
[18] In 2016, no aircraft were produced or delivered to clients, though the company has plans to start up production in 2017.
[18]"
Which means the Ivchenko/Lotarev/Progress designed and Motor-Sich produced engines have almost no demand. Chinese have bought majority stakes and will soon transfer tooling to China (ChongQing).
You might know better though.