Should Harry’s actor play James?

Unlike the films, the show has the advantage that we already know what will happen before the filming begins, which means that flashbacks could be filmed ahead of time. So what do you think about Harry’s actor playing James as well, with either contact lenses or digitally changed eye color (even if Harry doesn’t get green eyes this time, he still needs the same eye color as Lily and a different from James)? The part from the Prince’s tale from Snape’s first year could be filmed at the same time as the first season. Snape’s worst memory could be filmed at the same time as the rest of book five since James is fifteen years in that. The Godric Hollow flashback and Resurrection stone scene could probably be convincingly be played by Harry’s actor in the last season, since James was only 21 when he died. The only problem is Mirror of Erised and the Priori Incantatem scene, but maybe digital aging and blurriness could fix that (or AI for mirror of Erised, since all James does is smiling and waving).