Season two (especially the finale) got a little wonky (but still entertaining). If they were going to drag this on for multiple seasons I would be highly skeptical, but the fact that they are only doing three seasons make me fine with them telling whatever story that they want to tell. I like...
I think there may be some emotional big events, but no physical ones this season. Maybe a mini event (fireworks explosion or something) but nothing on last years level (maybe a Robbie cliffhanger like you mentioned).