Yes and the MKV is out there already, so everyone can get it if they want, which is why I'm in no hurry to finish the BD and am waiting 'till I can get it right for those who want the "retail experience" ;-)

And not all BD players can play MKVs and for example mine only shows the first ten soundtracks in the v2.5 mkv. Also, I don't know if it's just a feeling, because it's impossible to do a direct comparison, but when I play the MKV through my BD player, the upscaling is kind of crappy and I get these aliasing artifacts, which are most visible on the crawl but can be seen elsewhere as well, but when I used TS Muxer to create a simple Blu Ray disc, the artifacts didn't seem to be there.