Except they wouldn't be "Power Rangers" anymore, They'd be Rogue Ex-cops now in the military who found alien technology in the form of Body Suits.... Lord Zedd will be the Alien overlord who lost the Alien Suits, and he tries to kill them to get them back.
Zordon is now the Secretary of Defense.
the Megazord is really just a top secret Government project, which they used to defeat the Aliens.
Who am i kidding, Ya'd still watch it.