Concept: replacing quests! Sometimes the quest master offers us quests that are difficult or simply uninteresting to complete. Therefore, I suggest adding the ability to replace them with random other quests, 1 time (or 2 times for players with the hive+ rank), in 4 days.
P.S. I have already proposed a similar idea a little earlier, but now I have significantly redone it. Now illustrations have appeared here and many details have been clarified.
If this was implemented than I’d suggest that it may be used after completing quests too, but it regenerates the quests minus the amount with the certain qp value already done.
you do a 30qp quest
you reroll the quests
you still only have one 30 qp quest left.
Also I’d suggest to change the title from “replace” to “reroll” or something like that because at first sight it looks like you want to remove the quest concept and add another thing.