It's reasonable to assume that a 21 year old (22 this year) who has made just 3 professional appearances, and couldn't get into a league one team last season, is unlikely to set the world on fire.
Perhaps you're just a blind optimist, eh? - Something tells me you're going to be disappointed.
Guess you said the same about Bobby Zamora when he came on loan from Bristol Rovers after being loaned to Bath City I think. He turned out alright. I honestly think we could sign Messi and some of NSC would say, "pass his best".