With http/2 becoming closer and closer, and spdy being in place as we speak, it seems that we should really ramp up development on trunk to support these new techs.
Lets get serious on what needs to be done w/ trunk to get there, and what our wish-list is for new capability and architecture. Taking a page from mod_spdy, breaking the connection->request singularity looks like an interesting 1st step, maybe via some sort of "virtual connection" which a real connection can spin up/down and which corresponds to the request's "actual" connection...