Well, they just introduced the CS sub compact line as well as the RX series. I'm guessing the RX series will grow since it's basically just a single tractor (two choices of tranny) and that the DK55 will become part of the RX line since it's still an older design than the DK SE line, but that just a guess. I still think there's room to cut models instead of adding new ones. My DK45 is a good example, right in between the DK40 and DK50, doesn't make much sense to me although I do like mine.
They do have a new web site if you're looking for signs of life from Kioti corporate.