Leica M(10) - Only ISO 6400?

I'm a little disappointed in the max ISO 6400 for the new M. That was the thing (LCD and focusing issues secondarily) that bothered me most about my M9.

Given the class-following ISO2500 of the M9 -- I'm stunned that they only managed another stop and a third. And if it's like the M9, that would mean you could only use it at ISO 3200. Ouch.

Maybe they limited the ISO on the M(10) to keep the Monochrom a tempting option rather than wait-and-see on the M(10).