Adler's starting the drumbeat for a 2017 vote. The HOT increase is new (to me) but I wouldn't be surprised if that's what has to happen to make it work.
He rolls an unspecified ARCH reform/revamp into his downtown proposals. Good to see him acknowledging the issue there, but it's not clear in the end what he wants to see happen.
Adler probably doesn't know either, but he is hoping to get a discussion going. Any discussion about the ARCH could get the ball rolling towards an eventual relocation.