There have been a few models I'd like to see some of which haven't been mentioned, some of which have been mentioned some of which have been not:
Hideo Komatsu:
Lion
The lion is my most wanted model to be diagrammed it is pure simplistic beauty.
Satoshi Kamiya
Cerberus
Phoenix 3.5
Wasp
From Kamiya the obvious choice is ryuzin, but I find that model to be too complicated and probably beyond my abilities. I really want the phoenix to be published. The wasp would be my second choice and cerberus my third
Robert J. Lang:
Hermit Crab
This hermit crab is amazing and after having worked on the CP for a couple of days, I would love for it to be published
Brian Chan:
Attack of the Kraken
Fiddler Crab
Flying Grasshopper
Brian Chan is an amazing folder and nothing is more amazing (aside from ryuzin) than his 'Attack of the Kraken' I would love to see the model published. My next choice would be his flying grasshopper. I love it's color change affect because it is subtle. His Fiddler crab (whose CP is published) is also amazing.
Hojyo Takashi:
Shibaraku
Archangel Gabriel
God of Thunder
Hojyo Takashi has a certain uniqueness to his work so there are a few models of his that I would really like to see published. Shibaraku is an art unto itself and would be my first choice from him. Then I would chose the God of Thunder followed by Archangel Gabriel.