Extending his loan to the end of the season would be the only hope I think. Not sure Peterborough would accept the same sort of sell on deals as Spurs.
We don't know how much they want for him and realistically, if Wes DOES go, then we will have a little more money at our disposal. Like I said earlier, they can't want a ridiculous amount for a player who has only made one league appearance for them in over two years!
Having said that, I'm not sure when his contract at Posh runs out..