Delph probably doing the best thing really. While Benteke was still there he might get away with staying if he thought City would bench him. But with Benteke gone Villa are truly fecked unless there's a minor miracle.
Delph's decision is basically either -
- Go to city, probably get benched a lot but maybe get some games if your lucky or there's injuries, long-term either maintain that payday or get a move elsewhere.
- Stay with Villa, likely have a piss poor season without pretty much all their best players having left and risk becoming one of those myriad English players who go through demotion and then struggle to find interest from anyone other than relegation battlers for the rest of their career.
Either way it doesn't look great but at city he can at least leverage his nationality for high wages.