Can't see why not. I mean Kiwi Arms is probably in the works already, so this is just easy money from Bandai's POV
Also, about the Sentai releases: While it's all well and good to support your favorites, bear in mind the import market is just a drop in the ocean compared to the Japanese domestic sales numbers. It might suck, but with the exception of MMPR, basically what we get is mostly determined by what's popular in Japan.
It's also probably why Kiva base form was passed over for 2.0 versions of more popular Riders