I hope this doesn't make me sound like an idiot, but I don't know who else to ask. My husband is at AIT right now and finishes at the end of May. When will we find out if he gets deployed?

You find out when he finds out. It depends on where he is going, what his AIT is. When the unit is goes to has come back from a deployment.

We're heading to Baumholder. We've been told that since we're going there, he's almost definitely getting deployed this summer. And does this 3 month extension apply to only those already deployed, or those that are giong to be deployed over the next few months too? I've heard different things.

I think it is for everyone deployed now, and in the future.

You will know when he gets his orders to deploy, untill then you dont really kno

The 3 month extension applys to everyone, from what I understand, Army that is.