I think a lot of us would like a civilian version of the MUT. I know I would, but I think a civilian version should be between the Skeletool and MUT in size and weight. Unfortunately, I think it's unlikely that Leatherman will design a new frame.
I've been looking at the MUT and think it is designed to modify. If you replace the saw with a T shank adapter, the scraper with an awl and the punch/disassembly tool with scissors you would have an interesting but very heavy tool. The weight issue is why I think the tool needs a smaller frame.
Having said all of that I do hope Leatherman is replacing the Blast with a medium sized tool with the MUT format. Here's hoping....