As Monster High had done it started off as an online web series and still is. But like other web series i.e. Bratzillaz, Lalaloopsy, among others some have made it to the TV sets into a 30 minute show. Monster High has only had a series of TV specials shown on Nickelodeon.
But yet Lalaloopsy got a TV show instantly while their web series only had 4-5 webisodes and Monster High is in it's 3rd season. Why hasn't Nick picked up Monster High for a TV show?
If it does become a TV series one thing it should definitely do is stear more towards other characters. Basically not making Frankie the center of attention constantly. I wanna hear stories only in Venus's, Robecca's, Spectra's, Clawdeen's, Cleo's, and all of their point of views without needing Frankie to sum everything up.