As mentioned above, this will NOT happen.....
For anyone whos owned a diesel truck, they suck in cold weather. They need lots of iso-heet, and the fuel gets soupy in cold weather. They need to idle for a long time to start running properly. This would be a disaster for a machine to run in extremely cold temperatures.
The next thing is wieght. Diesel engines are heavy, due to many, many valves and other moviing parts. Wieght is already a issue with a two stroke, no one would buy a sled 3x that wieght.....
Along with all thos moving parts comes MUCH more maitence, and a disaster if u blow your egine. My buddies diesel shit the bed, and it was 20k for a new one. a sled wouldnt be this much, but it would be WAY ore than a typical 2 smoke.
And finally, if one were created i doubt it would pass emissions standards, or just be generally accpeted by the general public. Dont get on my case about how diesel burns cleaner, i know, ive been dealing with these things along time. People at a trail head wouldnt not like a noisy sled with a huge pipe blowing black smoke.