I always do Conquest, but never get the Pass. So my opinion is probably one they don't care about, but I wrote:
Revert Conquest to the first couple versions. Make Conquest actually fun to play, rather than a chore. Alienating players is not a good way to get them to spend money. Then, add more value to the passes to give a genuine incentive for players to buy them. Maybe allow players to pick one Data Disk from the basic Pass and two for the Pass+ (from the pool that are available). Have it so the Pass+ rewards extra Conquest currency for beating a node. Maybe combine the Pass+ with the monthly crystal pack, so players get crystals for each day they log in for the Conquest period.