Even if we all speculate the ending it will still be great to see the internal struggle each member of the crew, I mean, we're talking about both Ahim and Don's home planet, Luka's sister, Joe's mentor Cid, and Marvelous as the master of the universe, after all this time calling them selves pirates and then making that eventual sacrifice for the greater good would be a great end for the series. Besides, I still wonder what Basco mean by AkaRed is using the treasure for earth.

I thought what Basco meant was that the Red Pirates risked life and limb to recover a treasure that they were never going to keep (Since AkaRed intended on returning the powers).

^ That's what I understood from it too.

But why does AkaRed need to use the treasure to restore the powers to the past Sentai teams? It has been demonstrated many times that when the old team possess their key, they get their powers back.

Simply giving the keys back wouldn't necessarily be enough though. The Zangyack would probably just beat them again.

That would also be time consuming.
Tracking down 199 people to give their keys back.
Gathering all the keys and using the treasure to return then all instantly would be much easier.

Why not? they can make a reality show out of it :lol Besides, they've gather together before, I'm sure they can do it again ;)

i liked the battle at the end, 5 diffident transformations and and themes.

Y'know, I actually wouldn't mind seeing a mini-series/movie about Marvellous's days in the Red Pirate Gang.

Indeed, and that way we get more Basco