Wow, I wasn't expecting this, especially this soon after the release of the MixPre-3 and 6!
Sound Devices' new MixPre-10T is very interesting from a few different standpoints. First, the 10T adds several features usually required by pros to the MixPre line including an in-built timecode generator, redundant storage, and a locking hirose power input. Of course there are more inputs - 8 XLR/TRS mic/line and another 3.5mm stereo unbalanced input. Oh, and balanced XLR outputs (on mini-TA3). Those were the main concerns I had about using the MixPre-6 for professional location gigs but it looks like they just addressed them all.
The second and perhaps more interesting thing is that with these additional features, the MixPre-10T potentially cannibalizes some of their 6xx series sales. This is a $1,800 recorder/mixer. The 633 sells for $3300, almost double the price.
It takes a bold company to make a decision like this and from my perspective, they're doing something good for their potential customers. Now I'm still not suggesting that the 10T completely replaces the 633 entirely. Maybe it does for many workflows, but I definitely plan to hold on to mine. Nevertheless, I'm really impressed that they are forward looking enough to move this direction.
Now I've got to figure out how to get my hands on one for review!