12 Speed GRX is coming

Is that update brakes?

It doesn’t look like it.  But since Shimano would not comment there’s no way to know.  

The talk I'm hearing the cage is the XT cage now. Hmm.

 

This would be great news if the still unreleased 12 speed 105 mechanical levers and these GRX levers (which I assume are 105's with textured hoods and levers) use the same pull as 12 speed mountain shifters so that it's all cross-compatible (SRAM Eagle cassettes also unofficially work with Shimano mountain RD + shifter).

 

Also interested to see how much effort is put into 2x, and if the GRX cassettes for 2x are microspline (10T) or just road cassettes with a smaller crank.