I know of three departments that were offered the special EISP during 2017. I have heard rumors in Dec. 2017 from my first and second level about a March 2018 EISP, but the talk seems to have quieted down and I haven't heard anything lately.
Anyone interested can keep their fingers crossed. I believe interest rates and the other rates that influence the lump sum (GATT,etc.) are set to rise and that will decrease the lump sum.