http://sidestory.ggame.jp/jp/ms/
Has mobile suit info for the upcoming Gundam Side Story: Missing Link game.
On the Federation side, the GM Ground Type is a standard machine in Slave Wraith unit colors. The Slave Wraith itself is a Gundam Ground Type with a custom head, featuring new sensors, optical cameras, and communications systems; "the backpack is also replaced with a high-output type, and wearable armor is adopted on the shoulders." As for Fred's Pixie, they're unsure if it's a repaired version of the second unit from Cross Dimension, or the first unit that was scheduled to be deployed in Belfast.
On the Zeon side, Doug Schneid's Efreet is armed with a heat lance instead of the original heat saber. It can also carry a giant bazooka, and is pictured with a Gouf Custom-type triple gatling gun. Yes, the color scheme's kind of familiar.

Not yet on the site is the RX-80PR Pale Rider (see game magazine scan here). Yes, a completely new mobile suit! The scan shows ground and space versions, with the space type apparently borrowing some equipment from the RX-78-5 Gundam. Armaments include beam guns and a giant gatling, which again is very RX-78-5. According to the hard-to-read profile text, the RX-80 was being developed as a next-generation production type, but it proved impossible to mass-produce and was turned over to a research institute that turned it into a testbed for the "Hades system."
- Mark