Well, it's the expected (natural) result of the merger. If Square's just publishing Enix's titles for like 2 months, does it make a big deal? I say no. That said, it means Xenosaga will be published by Square. How's that for irony!
Oh, it turns out Enix America wasn't publishing Xenosaga.. thought I read that somewhere. Maybe not. I guess it won't affect any major titles then? Since Star Ocean III or anything won't be here for awhile - not until after the merger anyway.