Ideally we'll sell Young and Giggs will retire next season, and rather than buy replacements hopefully Lingard and Januzaj get their chances in the first team more often if they keep performing. Having Valencia and Nani as likely first-choice wingers, with Welbeck/Kagawa as other options in the bigger games is enough. Can't forget Zaha either, I think that mix of youth and experience will be good for the team. These young players look good enough already to me and will only get better.
Regardless, really happy for the lad. Strong chance of making it, hopefully things don't go the way of the last few young talents who I thought would come through for us (Morrison, Pogba etc). He was great in pre-season too, of course.