I mean gaining the powers of previous Riders was really one of the few things Decade did good.
If the old rangers had their powers they should all be fighting the Zangyack together, like happened at the war. Meeting and joining one team per time would make no sense. There's no alternate worlds **** here, after all.
Having multiple teams in various locations fighting against the Zangyack and the Gokaiger meeting them during their travels would have worked without problems. It'd also avoid making the Zangyack look as incompetent as they do currently, considering how it'd take team ups to beat them in isolated battles, while they'd still be around elsewhere.
Yes, and considering the format of the show, I'm afraid that having the past senshi have fight scenes might take away more of the spotlight from the Gokaigers.
This sets the stage for internal conflict in the villains camp, which to me is much more interesting to watch than the villains working like a well oiled machine.
This sets the stage for internal conflict in the villains camp, which to me is much more interesting to watch than the villains working like a well oiled machine.