ZeroWolf wrote:...but wait a moment...does that mean there's a second shockwave running around the functionist universe...along with a second unicron? After all those things are all fixed in place after the divergence point
In theory no?
Shockwave only became Onyx because the war gave him cover/need to expand Regenesis off-world. It's likely Dark Cybertron never happened in the FU and, therefore Shockwave never went back. Given that Alpha Trion is predisposed to telling stories, the 13 still became legendary figures in the FU, but maybe not religious figures.
In short, it's likely that FU Onyx Prime is just regular, old Onyx and not Everyone's Favorite Time-Traveling Furry!