So they're adapting Shinkenger? That's pretty cool. I was afraid they would jump to Goseiger.
I don't watch PR or Sentai, I only keep track of the toy line. Does anyone know if RPM managed to fit the G12 in the 32 episodes it had? I mean, the G12 appears in episode 35 of Go-Onger. Personally, I loved the G12. Best clusterf*** megazord ever.
Shinkenger also has one, but it's horrible. Unfortunately, the quality of the mechas has fallen in the past years. I thought Shinkenger's line was weak, and so is Goseiger's (with the exception of Mystic Brother, that guy is AWESOME). Go-Onger had its ups and downs (GunBir-Oh was amazing, but the Seiku-Oh was meh), Gekiranger was just bland (although the arm articulation on the Gekitouja was phenomenal) and so was Boukenger.
The last mecha, or MegaZord, that really wowed me was the MagiKing. That one was awesome, with two forms and some neat transformations.
Sorry for the long post, but I rarely get the chance to discuss Sentai.