I think it's safe to assume they've already killed it. Web developers can no longer make a reasonable assumption that their users will have flash, therefore flash is no longer a useful general purpose tool. It'll stick around for a long time yet due to enterprise and other lazy programmers, but for wide-audience web content flash is dead.
In effect they are. No android support, now nothing except Chrome support on Linux. I'd assume that if my theory is true, Mac OS X will take a similar route(why it didn't happen first is beyond me) before Windows finally meets a similarly gimped fate.