[Pineapple924]

So based on a purely visual inspection of the listings, the form distribution for the main riders will be:

Zi-O
Build, Ex-Aid, Den-O, Blade, Kiva, OOO, Fourze, Kabuto, Hibiki, Double, Agito, Kuuga, Gaim, and Decade

Gates
Ghost, Drive, Faiz, Wizard, and possibly Ryuki (its really hard to tell with all the silver on it.)

Normally I'd say that's unfair, but if the rumored synopsis is to be believed and Gates really is coming from the future to seek Zi-O and help them fix the time line, then this 3:1 ratio would kinda work for a newbie who's learning how to fight vs an experienced rider who only needs a few form changes to beat the MoTW, either that or Gates is a really chill guy who doesn't mind giving Zi-O the Rider Watches he collects on his own.

Speaking of Zi-O vs Gates, it seems from one of the images the forms will be different between the two riders, Zi-O with build is more white/silver, Gates with build is more black.

Also love Gates' weapon going "You, me!" and "Oh no!" for it's Yumi and Ono modes.