I guess we'll see more of these non-US controlled architectures and Linux variants along the road, because US governments and agents (just like everbody else, I guess) can't resist weaponising technology and IT.
Where it becomes really interesting is when these forks are upstreamed and vulnerability-management is being done on both sides of the political trenches.
There is a good chance, collaboration will just continue in the spirit of open source, but if course this could get weaponized and core developers may be coerced into doing so even against their will.
Ever since I heard how Ross-Perot-Systems, which used to run Iran's health care system during the times of the Shah, used software that would basically send critical health data to the US embassy across the street via electronic emissions much like a telegraph, modulating CPU produced noise using modified idle loops, I've become rather paranoid.
Yet within open source also lies some of the biggest potential to regain bilateral trust and peace.