I have Conquest Frontier Wars, it was a good game. The Fleet Commanders was a good idea, but there was no real tech tree, so there is no need for them.
The Fleet commanders would add bonuses to certain types of ships and they only had 1 life. The commander would automatically board the strongest ship and escape in a shuttle when destroyed. But can die easily. You could only make 5 of them. The fleet ships did not have any bonuses just 1 or 2 abilities.
All balanced RTS games have 3 races. Human/Alien/techno or psychic type races.
A cool game, but a problem were the jump gates that had to be build at jump nodes. Allies can fly through them, opponents would need to destroy them to get through. The were needed for supply in each solar system which contained the planets instead of gravity wells like in SOASE.
Instead of fleet commanders, Blair is adding diplomats for a diplomacy type of victory in the expansion. I can't wait for the beta to be released.