I'm sure they'll be carded as part of the standard line, but I'd be pretty happy with a Battle Pack as well.
Let us keep in mind that this is a TRU exclusive, so it should be more reasonably priced than Target's exclusives. So I'd guess $40 or $45 at the most. If I find it, and I usually see all TRU exclusives that come out, i'll get it.
Everyone seems to have missed that the preorder page says it is only available online.