As the suggestion of Regular PvP Battlegrounds had low response and the PvP content should have some addition, here for comments another idea to extend existing PvP content:

Legion battles
- where 11/15/more players from legion A could challenge players from legion B (legion B must have minimum so many active member as the attacking group would have members)
- there would be numbered slots/seats in both groups to be picked by players or randomly assigned by system (from left to right from active highest rank to lowest)
- position/slot for leaders would be possible to move to add a spirit of tactis in this battles.
- the legion battle results would be driven by sum of each PvP battle results, where regular member would gain 2 point for victory and the leader would gain 5 points upon victory. If PvP battle lost = no points gained, thus in worst case the defeated team gains a nice 0, the winning team would gain all points.

Legion would have to collect points from this actiity to unlock/gain:
* acces to additional base modules AND/OR
* additional base bonuses AND/OR
* medal points to purchase in Battle market easier AND/OR
* purchase new items in Battle Market with aim to create an set of items with ability to spawn one bonus random elite/boss NPC
(cooldown 40 hours, each set could be collected within give limited time = seasonal sets)
AND/OR
* other per comments/constructive suggestions