Now all the new battle tested (ML) and very good maps (Emily Fields, Bayeux 2.0 etc) will probably be added when they wouldn't have been if the map patch hadn't been delayed. I do hope 2v2 gets some love too though. 3v3 and especially 4v4 map pools are already really good at the moment.
There's a bunch of very good 2v2 maps that were shown off in Olvadi's cash games. I really hope they get a look in for the map patch.