Last season we saw the same thing. He got left out of the Euros, we expected that to be the monumental kick up the arse many suggested he needed.
Along with Haaland, was pretty much the only senior player to have a full pre-season we all expected him to smash pre-season and be the main guy we lean on early season whilst the rest play catch up, in the end he was out shone in pre-season by Bobb and found himself further down the pecking order before Bobbs injury.
No reason to expect this season we will see a new Grealish. He's had more than his fair share of chances and hasnt taken them, regardless of how much of a sound guy he is, it's time to move on from him.