That would honestly be the best replacement they could get for De Gea, but he would definitely cost more than Alisson and Kepa did last summer.
What would truly be great to see, is them giving these extensions to their dinosaurs and signing players like James, then OGS goes out into the season proving he is out of his depth, all for a new manager to come rocking up with old fuckers tied down for years and a need for proven (expensive) players to dig them out.
I really don't think I'm overreacting when I say if they don't get things figured out in the next season or two they're going to go through a sustained period of not challenging for the title a la Liverpool and Arsenal.