If there's one H-B show I would love to see a reboot of, it's
Wildfire. It's a cartoon aimed at girls with a lot of the same stuff girls would like (magical kingdoms, princesses, candy-colored horses that inexplicably talk, etc.), but it avoids being saccharine like so many others of its kind and has a very strong female lead in the form of Princess Sara. In short, it's a more hardcore version of the original
MLP cartoon that totally fell under the cracks in its own time.
Warner Bros. has yet to re-air
Wildfire or put it on home video or legal streaming or anything, but all 13 episodes are available on YouTube, so watch 'em while you can!