Many the cast members revealed on their blogs that there will be Second Go-Onger Theaterical Movie. On Dec. 7, Toei announced on it's Go-onger website that the film is going to be Go-onger vs. Gekiranger, and that it is to commemorate the 15th of the Super Sentai V-Cinema VS Series, having started initially with J.A.K.Q. Dengekitai vs. Goranger in 1978 and revived annually with Chouriki Sentai Ohranger vs. Kakuranger in 1996. The film is slated for theatrical release on January 24, 2009. The DVD release is scheduled for March as always.
More info here from TV-Nihon
The original source form Kikuchi Mika's blog
This is paraphrasing from the translation:
Go-Onger will have a movie once again!! I can't talk about the details, but this is unprecedented for Sentai to have a second movie. I'm so very happy. The other Go-Onger members are also very excited. Wait for more details! The fact that the second movie is being made is truly thanks to all of you, the fans. All the other Go-Onger members are really feeling loved!! Truly thank you! Bomper is also very happy!!