It's starting to look like they will update everything to a minimum of what the B-25 is currently at. Though I am honestly hoping everything is updated to the A6M5/B-29. With the C-47A now up there, I am going to guess the next thing we see is the B-26 or one of the GV's (probably the Panzer or the Tiger).
To be honest, if they decided to hold off on everything till it's all up-to-date, I wouldn't mind one bit. When they release the new tank drive system and the change to the gunners on the bombers, having everything up-to-date may help out quite a bit. I'm sure there will be people who will disagree with me on this though...
As for the call on what version, as is (if they decided to go with what we see), 2.30. If they brought everything up-to-date (A6M5/B-29 standard), I would be surprised if it didn't jump to AH3.