I know some here consider it too gimmicky, and I'm not a huge fan of how KC carried it off, but I hope TZ is considering effects when doing the fast packs and GBP armor. Either accessory can accommodate lights and/or sound, and neither has to be utilized.
Again, I haven't quite drunk the kool-aid on TZ yet, but such an effort to "one-up" Bandai (and maybe KC too if better done), might help sell me...and others on the fence too.