so uhhhhh what's the deal with this stygian mode's dual timers or whatever, like there was a week to do the fights to farm the artifact feathers, but now there's 18 days left but nothing to actually do?

and I don't see a seasonal reward list or something, and was expecting another set of enemies after that first week ended since the two timers were simeltaneously visible and all

so what's the deal with all that? are we getting more feathers in the next 18 days? or what? it's all just strange