This name just popped up on 2ch:
Kaizoku Sentai Goukaiger
Pirate Sentai Goukaiger
Goukai means "heart, freespirited, heroic". But it can also mean "The Ocean of Karma." It's also possible the word "Kai" or shell has something to do with the name.
If we switch the "G" to a "K", then we get the word Koukai, or "High Seas". DaiKoukai was the rumored name for DaiVoyager at one point.
This does not displace any anniversary rumors, but it does give us our first concrete motif rumor.
PLEASE- take this with a grain of salt! like all othe rumors. Till we get an actual picture of the copyright for this title, no one should take it as anything more than a rumor. later:)
-Another rumor popped up connecting the pirate rumor to the anniversary rumor:
-The Henshin Device will indeed be a belt
-The rangers can transform into past rangers by placing FIGURES of them into their belt.
The poster of this info suggests that the rangers don't actually travel at sea (at least to any extent of time), but act more like Diend in Decade- going from world to world/land to land in a Pirate-fashion, meeting up with old heroes.
I'm starting to get excited guys:) But please, take everything with a GRAIN OF SALT. More info soon.