Just to clarify, my scepticism here is about rolling async all the way through e.g. all the contrib modules. auth, yeah, OK I get that. I can even see async sprinkles on the admin being cool (thinking about notifications in mult-user situations). But the base admin views, the syndication framework, … — given the duplication issues, I’m not sure we ever need to make those async.
I’m very excited by the prospect of async cursors (and more) making their way to the ORM.
(I don’t think this contradicts anything anyone else said, I was clarifying what my position is)