In my opinion to make patrols better they should have npc's in the world's. That would allow for escort missions, timed racing style missions(bring package to another outpost). Defend the outpost, etc. I also think a little story should be included in the patrols. Not main story, but instead of grimoire cards telling me about the Cabal, I do the research though patrols. And I'd slowly develop over 3 months throughout the expansion.