Z97 was designed to support the Haswell refresh (Devil's Canyon) and the planned Broadwell release.
Z97 supports Broadwell, but there's only one Broadwell CPU for LGA 1150 that's readily available, the one I linked.
The mainstream Broadwell release was a flop, the die shrink from 22nm to 14nm didn't do much. For the laptop market, it was much more successful. Skylake is based on the 14nm architecture, but Intel designed it for a new socket, LGA1151.
The Haswell enthusiast chipset was X99 (Haswell-E). The planned refresh for X99 was Broadwell-E, which has only just recently been released.
LGA2011-v3 is very different to LGA1150; the CPU itself is much larger, as is the socket. For an Impact VII, the best CPUs you can fit are either the i5-4690K or the i7-4790K. The Broadwell i5-5675C has great integrated graphics, but that's all.