Yes, I think it is on it's way out.
Right now it lives in a small notch .40 - .90 size. It also has the depth of already built planes that people like me still fly. I have a 1/4 scale cub that was and is still powered by a ST 3250 glow. One of these days though I will redo it as a gasser.
I think it still rules here (40-90), but, the 20cc gassers and up are just too good above .90 and below .40 the electrics are just too good.
Glad your coming back to RC.
See you at the field.