I really love the design of the Mosasaur and think it would translate well into action figure format....especially with the soft dino-skin of the original Kenner toyline. It won't happen, but its fun to think about.
It would be nice to see a new line of JP figures release with new sculpts and nice packaging, but lets face it...Hasbro is sitting on the rights and they never do anything new or innovative with it. There are tons of long winded rants over at JPToys.com about releasing new figures and petitions but none of that ever works.
For now, we all just have to dream.