The most unradical solution would be Hawk T2s. If we're getting an extra 2 Typhoon Sqns dedicated to air defence, and given the current political climate, we may expect possibly to see more T2s anyway from which perhaps enough to form a 5 or 7 ship for example. Such a move would be reasonable and en
sure the team live on for a fair few years yet!
However, if the thinking is to use anything lighter would certainly miss the point of the Red Arrows altogether.
Interesting though how in these more abundant and resourceful times the RAF have no obvious successor to a display team mount that has been on the go for 40 years or so.
FB