I am all for a full reveal event in February or March. It would be the best time to unveil the Xbox Series S / Lockhart IMO. Obviously, focusing on games would be smart. Unlike with the Xbox One reveal that focused on TV and movies for some strange reason.
XboxEra had a Podcast a month or so ago where one of them mentioned he heard the reveal event is in April/May but Idk how reliable he is. I reckon they'll reveal another IP too, most likely Forza Motorsport as Phil did say he can't see them not revealing a game or two for all their future major events from now on.