Finishing/expanding feature gates

[Daniel Smith]

Hi, I'd like to get this KEP on your radar:

https://github.com/kubernetes/enhancements/pull/3920

I'm happy to present about it at a SIG Arch meeting if you would like, or just work on an alpha if everyone is already on board ;)

I have made a slide deck if you'd rather read that than the KEP. The KEP incorporates more feedback than the deck.

Thanks!