I really appreciate the recent flow of videos from Joel. They're long overdue, but I can appreciate from the perspective of such a large re-write of the games skeleton that it may have been near impossible to have a bug-free presentation up until now (note the latest video teaser showed zero gameplay, just changes to skills / perks menus).
To speculate with the awesome power of hindsight, I do wonder if it was a bad decision to take the update to Unity part way into this update to A17. Sure, it's meant fewer disruptions to users when the game (finally) gets updated, but I really think it would have been better to do the new 'skeleton' in the old, familiar version of Unity, and then to ship and update to the newer version, with all the texture stuff later on in the post A17e cycle.
All those new POIs, more challenging melee, all new perk/skill framework... it's going to seem like an all-new game once it finally gets released.
Query: Will the gyrocopter become the new way to escape engaging the hordes? Is it possible to shoot from the copter, or are your hands locked onto the controls?