KDF have a tough time filling the current PVE queues.
Most KDF can never play, The Big Dig, Breaking the Planet, Starbase Defense
Make the all the PvEs cross-faction including the Nukura Prime ones.
A big part of the reason why there are so few KDF is because there is a lot of content inaccessible to them because there are so few KDF to fill those queues.
Change Breaking the planet to the Tal'shiar
Change the Big Dig to Tal'shiar
Not much we can rightly do about starbase defense or the other fleet ones. Although making all the private matches cross-faction would be good. (last time I checked private queues for Mine Trap were not cross-faction)
Make a third PvP queue that ignores factions (it makes sense considering all the other cross-faction task forces to have cross faction war games)