Our story about how the EA technology was made is completely different, and the Nemesis was only deployed once to destroy the Megaera, the enemy flagship. Also the EA was formed after the Sol wars, not during them.
A future EA expansion is possible. I have some addition FS1 style ships for use, but they don't really match the quality of the current EA stuff, so lots of work would have to be done to upgrade those.
I'm also working on something else intead