Linking fates that lead to bosses tend to have a story some more shallow then others If you expand on them you and have some gimicks it could be quite entertain but would loose its luster if it popped at the same speed as normal fates. Lets say you had to chase 4 imperial envoys through wilderness each had his own direction and party so the fate is actually dividing player. So a fail if any of them hit a zone line. Now PCs who participated gets a order that has to be returned to a GC officer with in a in game day to access the next fate. Now lets say 4 different zones you have to attack a hitsquad. If all 4 are defeated with in a time limit you pass and get your second medal. All squads gather in two ingameday for an attack on a large zone like Sagoli desert where 5 bosses will be scattered but same timelimit and have to be defeated simultaneously or the rest retreat causing auto silver and no achievement and/or special reward. But thats a lot of work by devs for a one shot.