He would be very welcome, given just how shit we are in attack these days.
I do fear that he may not perform to the levels that he is performing under Simeone, given the pussification of players who come to Barca these days
But whatever, he's a big upgrade to Suarez these days who looks like he can't be fucked and is only interested in collecting his giant wages. That said, I do believe if Suarez could be fucked to be more committed to his fitness and form he would still be better than Griezmann, but like I sais, he looks like he just doesn't care anymore.