Not yet :/ Believe me, i'm checking daily. I did have a chat with EVGA a couple days ago and asked about it. I was told they won't be making a single slot, which isn't surprising because they never do anyway on the lower cards. Pretty much what i expected. I did find out that the Titan Black will have a liquid version coming soon with the waterblock made by EK.
When the single-slots happen, 99% chance it'll be by Zotac. Maybe 70% chance from Gigabyte.
Edit: The reason it's taking so long is Nvidia was nice enough to redesign the screw hole spacings so any available cooler no longer fits. They're now 44 x 44mm when previously they've been 53.2 x 53.2mm or 58.4 x 58.4mm. So now all the GPU manufacturers have to design new heatsinks from scratch. Nvidia screws us over once again :/