As for why Rita's green, I hope it's because she's using the green power she once bestowed on Tommy for herself. It's a reboot after all and if there isn't a 6th ranger in this, then... would make sense.
First look at the mighty morphin reboot suits... Guess it was the sort of redesign I expected. Kinda mixed on it at the moment. Need to see 'em in action to get more of an impression.
Suit are ok, I'm hoping since they seem mostly CGI'ed we'll see over the top fight scenes that aren't limited to what wire-work can do. They revealed a small tidbit of info a few days ago in that the suits seem to be Alien body armor which is why they're so funky looking.
I honestly prefer this. We've had a movie where they wore traditional spandex in the first movie's sequel, now I want to see a massively different approach because "doing their own thing" is what Power Rangers should be about. Making a feature film that mimics Sentai in my opinion won't fill up seats as opposed to modernizing it.
I do like at least how they're still having the same original human characters as the Rangers (Jason, Zack, Trini, Billy, and Kimberly), just they'll be played by a different cast of course. If we ever get Tommy in the future, I'd prefer he be played by someone else too; even as young and well in shape looking as Jason David Frank still is now, it'd be kinda weird for him to be the only one to reprise his character role in this rebooted continuity... xD
I'd only want to see how the Green Ranger with dragon shield would look redesigned alongside the others; never cared much for what came after like White Ranger.
If they're all Mighty Morphin movies then I might be on board with that, though they should wait to see how successful the first one is before making those kind of claims/showing that kind of confidence...