Star Wars Shattered Empire
This bit sounds EXACTLY like West End Games from 1987, and everything after up to the present in Wookiepedia. So maybe EU is not that off base.
Emperor Palpatine’s twenty-year reign of terror new found prosperity and New Order came to an abrupt and fiery end in the skies above the forest moon of Endor. A decisive victory for the Rebel Alliance, to be sure, but even with the loss of its leadership, the Empire’s Moffs and regional Governors retained their hold on important systems from the Core to the Outer Rim, thanks to the might of the Imperial Starfleet. Now, with a power vacuum atop the Empire, those Moffs will jockey for position and control, and the heroes of the Rebel Alliance will soon discover that a wounded and fractious Empire may be more dangerous than any threat they faced before!
Also The Pentastar Alignment from West End Games in 1994 sure must have influenced The First Order's insignia.
Edited by Imperial Advisor Arem Heshvaun