Barcelona seriously needs Alvarez to come as a new striker. I believe he can suit Barcelona's gameplay well, but only wonder on how much he priced by Atletico. Logically, They have no good financial to buy him out from Atletico. However, they can do something to raise the fund like selling lots of their young lads.
It will be interesting to see Alvarez to play at Barcelona. He had been coached by Pep, which has also Barcelona DNA.

Some people may be getting upset about Barcelona's financial, but they still have so many players to sell. That's why i think the possibility is always there for them to sign Alvarez.
I hope him to join Catalan asap.