it seems to me like Tackey is interested in history...specifically with ancient Japanese history, but he had a stageplay dedicated to his own life's history as well. & he did do Yoshitsune, a taiga (those old historical) j-drama too. i don't really see a problem with it if he's really into that type of stuff. sure, as a fan, i don't relate to it. as long as he's happy.
& i don't think those Juniors seem like they were sad that they weren't at Tokyo Dome. Tackey's a really well-respected sempai in the Johnny's Junior realm. i'm sure they were glad to be with him.
as for Tackey & Tsubasa, i think solos will be the main focus for a good part of this year. but Tsubasa has said there will be T&T activity, but we just have to wait (more).