Since Hasbro owns Power Rangers now, here's what I'd like to see:

As an old school fan of Power Rangers who needs to recap everything after *shudders* Turbo. Here's what I'd like to see in a "Marvel Legends-like" Power Rangers line:

-Villains:
Bandai's 7 inch rangers were fine and all, but No villains and I wasn't going to rebuy all 5 MMPR team for their weapons... well I've only seen the random Billy.
We need Goldar, Rita, Scorpina, Lord Zedd, heck even the putties. Mesogog for Dino Thunder, Divatox for Turbo just to name a few, but most importantly: Ivan freaking Ooze.

-Rangers need a second head without helmets:
This could pose some trouble with some rangers like Kimberly/Kat, Zach/Adam, Jason/Rocky, Trini/Aisha/Tanya, etc. The solution is rather simple:
Mighty Morphin gets team 1 (Billy, Kimberly, Jason, Zack, Trini) Green Tommy gets the non-ponytailed head. White Tommy gets the Ponytail. Trini comes with a third head, which would be Aisha (unless we get a Ninjeti wave)
Zeo gets Kat, Tanya, Rocky and Adam.
Turbo gets team 2 and mini Justin as BaF.

-6" scale gets Zero Zords, but if Hasbro works other scales for the Zords, they Could make them close to 6" scale in order to squeeze out a couple of monsters.

-while this would be a fun item, I can see Playmates saying no... try to obtain access to the Ninja Turtles The Next Mutation as a special SDCC set where the box looks like the cockpit from the Power Rangers in Space ship  (while the "In Space" wave hits stores)

-keepmost of the recent series in the "for kids" line, while everything from MMPR up to SPD as the "nostalgia lines for adults" while adding the new folks SLOWLY

-Just for kicks have a Tommy Wave:
Basically: MMPR Green, MMPR white, Zeo 5 red, Turbo Red, civilian Tommy Oliver (with all the alternate heads. Longish loose green era hair, ponytail for whiye and beyond, short Dino Thunder era, and the Lord Drakon hairdo), and Dino Thunder Black with Lord Drakon as the BaF.