[XW1n5t0nX]

It sounds like a nice idea, but as others have said, they will probably not use the keys in lue of the cards. I can see the keys in some way maybe helping them get the newer cards to transform, but outside of that it's probably just going to be something like

"Megarangers, the time has come for you to become ever more super and mega. I give to you cards that will give you the power to transform into all 19 previous Power Rangers. Good luck."

This is honestly why I wish they wouldn't do the whole "Super" thing. It's slightly understandable for Samurai, but still they don't need to name the next season Super. All it does is give them a new way of marketing.

I honestly prefer it to where they do one season for one series, and when the next season starts, it's a theme completely. They can use the old actors, but at least give them the different suits, mecha, and series name. Because come on, would you rather have Power Rangers: Pirates? Or Power Rangers: Super Megaforce AKA Goseiger but with Gokaiger. It's kind of the same thing they did with Dairanger and Kakuranger when they brought those over.