Intel Xeon Launch Schedule Released

[Duff-Man]

"Future Xeon E3s and E5s will be introduced more gradually, with the E3 processors available in May or June 2013, while some E5 series chips will be pushed back as far as Q1 2014. Ivy Bridge-based Xeon E7s are also expected in the second half of this year. All in all, within the next 4 quarters all three Xeon subfamilies are going to move to newer microarchitecture."

Source

E7 needs a refresh in my mind.