If we intend to use him, then thats Lingard gone. Which is no bad thing.
If we renew Gomes and then afford potential game time he would get on Lingard, or even Periera then we are seriously missing a trick.
Ole likes to breed youth and he has surely seen that Lingard and Periera dont offer enough, its whether we can sell them.
If Gomes commits, then i suspect Ole will use him. He's been injured a lot and the fact he hasnt signed has properly dented his chances of more game time this season.
Only one way to know if he will adapt to seniors and make a mark is by using him in the position he plays. If we can commit to Chong, who isn't as good for me then Gomes should get a chance.
If we keep Pogba and renew Gomes, i doubt we'll go after Grealish as well.
For 3 starting midfield positions a squad of:
Matic, Fred, McTom, Pogba, Fernandes, New DM, Gomes is probably enough. Also have Mata and most likely one of Lingard/Periera if injuries are very bad.
Ideally a summer recruitment of:
DM/RW/ST for the first team is all we need if Gomes renews and Pogba stays
Bonus signing would be a top tier CB to replace Lindelof, such as Upamencano.