As I've said before, I'm not much of a fan of Shimano's business practices.
But now it's hard for me to see how Shimano is going to recover in the mountain bike market. There is just not much to complain about other than cost when it comes to the SRAM 1x11 system(s) - and I should know, I own several sets and I must have sold a hundred kits by now. Nobody goes back. Shimano has had several years now to come up with a response and so far... nothing.
OEs will be on it like flies on you-know-what, too. It's plausible that you'll see <$800 bikes with 1x11 drivetrains this summer.
And yes, as always, I'll have these parts available when they come out. Expect cost to be in the range of 50% of retail if you're a frame customer.