Lets clear up some things about the 2013 story BEAST WARS Shattered Glass... The SG Universe is now home to Classics Earth.
Along with Classics earth, a few dozen Heroic Autobots and Evil Decepticons now reside in the Shattered Glass Universe.
BEAST WARS Shattered Glass takes place in the distant past on Shattered Glass Earth and features the Heroic Maximals led by Ultra Mammoth
Fighting against the Evil Predacons. WHO these Preds are will be revealed in Issue 49. The story focuses on the Classics characters.
However, with this story taking place ON Shattered Glass Earth, there may be some cool twists...