If just Ake leaves then this is not a needed signing. We have 3 top quality CBs fighting for 2 spots, plus 1 is needed as back up (Ake) can be replaced by an academy player and it makes no difference.
But if Laporte leaves then I dont trust Ake to be a top quality CB, but I think he has gotten enough minutes and faith from Pep to see we rely on him. I think Laportr will stay.
Ake may want to leave because he's 4th choice, I dont blame him, but I'd just let say Callum Doyle or Mbete have that 4th choice spot.