Personally, I think the PU deck requires a lot of patience, and strong yomi play to be particularly effective. Both Dan and Josh are excellent yomi players, so this deck plays to some of their strengths and can be quite effective.
The deck needs to manage agenda flood effectively and, as many others have said, wait for the runner to kill themselves. If the runner can sense when agendas are piling up on HQ and access/check the remote, or knows when there are enough agendas buried and to lay off, the deck can really flounder.
My prediction is: Hayley. Hayley everywhere. Every flavor under the sun, but expect a lot more Laguna and Heartbeat than you normally would.
Corp side I'll guess CI, CtM, and PU in that order.