Simon Furman has updated his blog with an entry about Beast Wars Ascending issue 4. Here's a litlte extract.
"On Cybertron Shokaract prepares to ascend to what he believes is a higher plane of existence, but (unknown to him) it will actually spell his total and utter obliteration, his ’sacrifice’ heralding the return of the Transformers’ ultimate nemesis: Unicron. Trying to stop this happening are Big Convoy, Lio Convoy (and the Pack) and, from afar, Magmatron (who’s currently trapped in a timeless limbo). Following this so far? Good. Their efforts are hampered by Shokaract himself (who’s powered up to the max on Angolmois energy) and Shokaract’s heralds: Antagony, Thrustor, Hellscream, Max B and Hardhead. Then, on prehistoric Earth, the assembled Maximals and Predacons face off against Rartorata, Elephorca and Drancron, with Razorbeast battling alongside them (and, at the same time, battling the Angolmois corruption that threatens to consume him)"