Harmy said:

Now, for the BD, I'm going to make the m2ts file downloadable separately from the rest of the BD structure, so those who want the whole BD can just download the rest of the BD structure and put the m2ts file in the right folder within the structure and burn to disc. Those who only want the mkv will only need download the m2ts file and remux it to mkv - I will put clear pictorial instructions on how to do these things in with the release.

Sounds like a good idea. What's the reasoning behind remuxing the m2ts to MKV? Is it for player compatibility?