A few suggestions:
There is currently no incentive for warzone control or pushing systems except for docking rights and the LP from plexes you get for capturing those systems. In some cases pushing the warzone would result in less frontline systems for you to plex and less income.
There should be some reward for the winning faction that doesn’t impact the losing faction.
(imagine LP payouts to pilots upon system flips for PvP and plex captures, similar to how the concord LP from incursion payouts work - and/or bonuses for capturing systems that are very long held and havn’t been flipped in a long time, these systems are often strongholds and this could lead to some really interesting fights.)
I also notice on test center that because ships are free, people are tending to fly lots of big ships and only running the biggest plexes. This is the inverse of what usually happens in FW. I would just recommend keeping that in mind when evaluating and balancing.