[Den-O]

While it's clear that Gokaigers formula made for the best anniversary, you can only blow that load so many times. It was fantastically respectful and aware of what came before it, it had a cool gimmick, and was really fun. But you can't jut do over that gimmick again for the 40th. Which begs the question what would you do for another anniversary so close to this one? I agree with Zeo that a more subtle homage with a VS Super Sentai movie or two would do just fine. It clearly worked twice before.