Yes I think the the WA22SE was renamed the WA33. I'm not aware of another amp that Woo was working on. The pics look similar to the WA22SE prototype too.
Not sure about that. The knob layout was different on WA22-SE prototype, and that design was a 2pc stack of power supply and amp. WA33 looks like an all-in-one design. I'll clear all this up for you guys at CanJam this weekend though