I doubt that it will ever happen, studios targeting Android/Linux with the NDK don't bother with GNU/Linux as customer base, due to additional QA costs for little benefit.
Then there is the whole culture clash between FOSS and the way games industry sees IP, NDAs and the proprietary tooling that gives a game that edge over the competition.
Then there is the whole culture clash between FOSS and the way games industry sees IP, NDAs and the proprietary tooling that gives a game that edge over the competition.