It's pretty certain that it's coming out soon, but how soon? No idea...
I have a case just like the one in the photos, seems they sold an early batch of them to Pexon. Really nice case.
If you don't NEED the board right now, I'd say wait for the 3. It's rumoured to have full programmability so you can put the Fn and Pn key wherever you like, which is a big improvement over the II.