Canon has just announced some new lenses to go with the 7D Mark II announcement.
First up is a Canon 24-105mm f3.5-5.6 IS STM lens. This will bring the STM (Silent AF & Aperture adjustments) to full frame cameras as well as APS-C cameras. The f3.5-f5.6 aperture though may discourage use of this lens for video (Canon should make a constant aperture STM lens) but it for now is the only STM lens available for full frame cameras. If you can live without the silent AF though, you may want to look at the Canon 24-105mm f4 IS or Sigma 24-105mm f4 OS.
The Canon 24-105mm f3.5-5.6 IS STM lens is available for $599
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 Next is the Canon 24mm f2.8 STM Pancake lens for APS-C cameras. This lens is similar to the 40mm f2.8 STM lens that Canon has had out for some time. With an equivalent focal length of 38mm on an APS-C camera, this lens is a great general purpose prime for the Canon SL1, T5i, and Canon 70D.
The Canon 24mm f2.8 lens is available for $149
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