well maybe the phantome keys a pirated copys of the 34 sentais powers

In the previous movies the Gokaigers were able to change, I think that as long as the person is not using the power, it's accessible by the belt.

I think about this and for some reason I hear Parappa the Rappa yelling "You Gotta Believe! Gingaman!"

That's a cop out of a story telling device if I've ever seen one.
It also lessens Gokaiger's ending in doing so.

Well, then that would kind of kill off the Gokaiger's gimmick no? how can they keep bringing the guys back without their form changing capabilities?

That's precisely what they should do.

Why? There's no point to their gimmick then. I could give a damn how halfassedly they explain it, I love Gokaiger and I love seeing them change into other teams. As long as they do it, the convoluted way they get their powers back doesn't matter to me.

EXACTLY.
Eliminate Gokaiger's gimmick. God forbid they actually develop their own fighting style beyond "Toss Luka and Joe the swords, and Ahim and Don the guns."
Why end the series with them relinquishing the ranger keys in the first place then? They should've just flipped off Akaranger and kept the damn keys then.

I'm in agreement that if the Gokaigers suddenly have the keys back again it lessens the impact of the series ending, but since this film seems to be dealing with Phantom keys and copies I'll hold out that there's an appeasing explanation for it all. The vs. movies have gotten reasonably good at tying loose ends together.

Apparently would be the keys to the 37th sentai, of a person after the keys have a dino on the torso. The only likely explanation for this is Phantom key is that its keys will be transparent to the Kyoryuger landed in the film. Well have heard will set bienot view that would soon unveil kyoryuger .