I can see why someone might be interested in Carrasco, but, for me, he's a show pony that lacks awareness where it matters and end product as a result.
I wouldn't be against a loan until the end of the season because there'd be no down side, but at this point there's no way I'd want to spend big money on him in the summer. And I'd take Perisic on loan over him for the rest of the season without a doubt.