>>543753572
Yeah, without new sources of gems (story, events, new game modes, gifts, etc), it would take more than a year to farm 1 spark or pity.
If the events aren't generous enough then the F2P crowd will simply go away because it would be impossible to keep up.
However considering the current situation, I'm very doubtful Yostar will go the route of Blue Archive and let F2P save 1 pity every 2 months or so from free gibs.