Sad if Cummings goes but he's earned it with those goals against Hearts, being part of the Scottish Cup team and signing that new contract last year to significantly bump up the price of this transfer. I would stay another season if I were him and try and prove to everyone that he can cut it in the top flight before heading south, but I can't blame him if he wants to go. Have a feeling he'll got lost in the shuffle down there and we'll see him back in Scotland (be it in Leith, Govan or - god forbid - Gorgie) soon enough. He's also one of the best personalities that Hibs have had in ages, not enough modern footballers like him tbh.
ETA: I think people are being misled in their anger at the board if this "£1.4m" transfer fee has been accepted when we rejected £1.7m from Peterborough last year. IIRC, their offer was made up of tiny fragments of clauses etc. - so I would assume that this one is a fee up front.