I have a suspicion that Gregg Berhalter has been in Owen's ear. There are a couple of midfield spots up for grabs with the USMNT, and if Owen is ever going to make a claim to the shirt, it has to be done now, and he simply won't be able to do that if he stays at Wolves. He won't get enough playing time.
Equally, as much as a like his effort on the pitch, he's a more than a bit "Bambi on Ice". Just doesn't look like he's in control of himself. If we can get money for him, brilliant. If we can insert a buyback clause, even better. But it's probably best for everyone if he continues his development elsewhere right now.