Very unlikely that LFC, spuds or arsenal would want the guy on loan without any chance of signing him at. The end of it. Barca may however include one of there famous buy back clauses if they did choose to sell but more likely to go to a top Italian club with Euro football and little money so...
He is not for sale. Last year his buy out clause was raised from £8m to £29m. He will probably go out on loan to either LFC or the spuds.
He may however change his mind depending on how the year long loan goes, but he won't be leaving Barca any time soon.