At the beginning of the arc, we get 19% chance of surviving one month (OP time).
At this halfway point, 2 weeks in, we get 1% chance of survival by end of the day, or tomorrow.
I think it's for Luffy and could signify that, by tomorrow (One Piece time), the alliance would have officially,
majorly, failed the 1st attempt at the war/battle, and Luffy will have suffered a critical injury like in Marineford, where he hangs on a balance of life or death.
They would have to recoup/train and try again 2 weeks later at the end of the month. I have no idea how he would be healed tho so just a thought.
But man if this is it for this chapter in a nutshell, then I'm interested to see how Oda will drag these spoiler plots into 16+ pages, that should really be 4 pages max.