I think the pathos at the core of the ending would work much better for an American audience if the relationship between Blade and Chalice more resembled a conventional romance than an epic BFF-ship.

This is a good reason to want a gender swap.

This is not a good reason to want a gender swap.

Having a female just for the sake of having a female rider isn't a good reason. It feels like, and I know I've said this before, going down a list checking off boxes. It feels forced, like you're doing it just to do it. Don't make a point of having a female character, if the character is written well and happens to be female..yeah, go for it. Don't do it just to do it.

Anyways, I still think Fourze would be a really really good season to bring over. A lot of great toy opportunities, it's a really fun season, kids would dig the space motif, the high school setting, just a lot of things about it would work really really well.

Wizard is ripe for adaptation, I feel.

Firstly because it's probably the only Rider show which I've seen actually focus on the action - like I see a lot of people suggest things like Fourze or OOO but with their focus on plot and character there isn't a lot of usable footage per episode, especially in comparison to sentai - but also not to mention with Wizard, even if you rework the story from the ground up Urban Fantasy is something much more westernised than a lot of toku shows usually are, so it's easily translatable as well.

How would they adapt KR OOO?

Something with a little spiderman. "With great power, comes great responsibility!."

Id think both Fourze and kabuto would be great too. Mabey even Den-O. I do like the low buget ports rather than the route taken with PR in last few years. If they do it again make it more along the lines of Dragon knight's feel and cinematography. Low budget is not bad...

Great things do come from limitations.

I think Kiva could work well. Sure, it wasn't overflowing with Riders, but the suits looked good and there was plenty of footage.
I'm not sure how they'll handle the dual time line story, but they don't have to keep Otoya as a womanizer if they feel it wouldn't be appropriate to the kids (Or not make it so blatant).

Man they should do a Beetleborgs style story with Kiva, it would actually make sense this time.

kamen rider ooo was pretty good but what would you rename the combos and kamen rider birth

Have Kamen Rider Kabuto follow a similar pattern to Tiger and Bunny.
But have Kabuto be the renegade veteran and Gatack the overachieving noob of justice.