It's funny, you tend not to notice era changes at Radio 1 until you see a list of names like that.
I think the station's sounding really good at the moment. For me Greg and Grimmy are much better suited to their new timeslots. Nick's much more himself than he was in the structured format the old Breakfast Show was in, a decent listen. Greg makes Breakfast feel quite exciting and big budget, whist maintaining his trademark silliness.
I wouldn't say Annie is new however. She started on air in 2004 (according to Wikipedia) and was on BBC Switch with Grimmy what seems like donkeys ago.