Pidgeot: I suspect there will be at least 4 or 5 cycles. I can't imagine the promo ending before the stream, and that one still has nearly 2 days left.
Granted, they *might* have underestimated the popularity of the sale... in which case all bets are off, because I don't think they'll be able to add any more rounds at the last minute.
The previous iterations of Insomnia had three cycles with increased cargo, and the third cycle was, from what I remember, WAY longer.
Still, no idea how this one will work, especially since we have two carousels now.