I was thinking just this morning that Offblast would be included in the next update. And looky looky. Also - hats look great. Only good if I actually get one this time
With this update being non-class specific, I'm starting to think they're doing a triple wammy with the Soldier, Demo and Engie, hence the delay.
And is Offblast a community map? It didn't say.
I don't think Meet the Medic or Meet the Pyro will be released with this update.
Also, if you look in the background of the Hats picture on Day 1, looks like a resupply room (or something) for a new map but it would be impossible to figure out what it is. Well let's just wait for Day 2 later today