They're letting the people vote on up to 2 maps each, to see which ones they'll be adding to the ladder. I hope some of the older, more tired maps get ousted. Like The shattered Temple, maybe Metalopolis as well.
I've seen tons of people ask for Daybreak to be on the ladder, and I suspect it'll finally be happening. I personally voted for Daybreak and Metropolis. And with Ohana's debut on the horizon as well, the future of the SC2 ladder looks rather bright!
and yes, I know there's a thread for this in general SC2. However, there are some folk, like me, who come here entirely for mapping, and we also care what goes on in our ladders. Check it out!