Perhaps, but wasn't one of the main issues people had with it the difficulty of matching the new footage to the old? I'm sure I heard that some where.

Mind you I suppose Dragon Knight was SD so the gap wasn't nearly as drastic as it could have been.

I dunno I really love Dragon Knight - and by all regards Japan were really happy with the adaptation too - plus it won some awards and stuff in the US as well so I really don't know why the toku community puts such a downer on it.

I thought it sucked :lol
The chaotic editing, the strange lack of music, and some of the actors just not being convincing enough. It would be unfair to harp on the effects from 2003, but I just wasn't a fan of Dragon Knight.

I don't see people that suggest decade to be adapted. okay it is a tribute series to all the other riders but if someone wanted a way to adapt the rider universe to the usa decade will be the best option

Ryuki had the best toy sales of the 2000's which is why they pick it. I remember they started working on DK back in 2006. So they had to pick between Kuuga, Agito, Ryuki, 555 or Blade. Hibki would never work in the US and they might skip out on it due to poor toy sales.

As much as everybody would and will complain about quality of the picture, why not just do a Showa one? Plots are simple enough to be adapted over to the US. True there won't be a whole lot of merchandise sales, but they could always come up with their own.

You sorta answered your own question there, there is pretty much zero incentive to use a showa series.

They could make a original American Kamen Rider. If the US can make a original American Godzilla and Ultraman then why not Kamen Rider?

decade could work but you have to find a way to adapt the other besides dragon knight and masked rider and rework the plot

How would Decade be the best option? The entirety of his series is based upon the existence of others.

The sheer amount of explaining they'd have to do to make sense of it all probably wouldn't be worth it.