That driver is included in box with Windows* Server 2008 R2. No updates to that driver are planned.
Check this page to see a list of Intel(R) Ethernet adapters that include basic drivers in box and which adapters have (or will have) updated drivers with Intel(R) PROSet, and ANS.
Off course, we need driver with advanced network services (team etc.), which is the least on a server with server NICs, not just Windows "in-box" driver for just one NIC as on Desktop.