YanniD said:

For me, the only difference between mkv and BD is menus. As much as I like the idea of menus, it is the content that is most important.

So, if the choice was between mkv now or a later BD (that might still be rushed and have to be modified), my preference would be for mkv. I don't just mean for the movie, but for the extras as well.

It would be unfortunate to create a finalised 2.1 BD, only to discover that something was not quite right and have to be corrected and then the whole thing completely downloaded again.

His issue wasn't not being able to get the film itself ready for a BD release, it was not being able to give the bonus content its due. A couple pages back he said that he'll release a BD version (with very few extras, if any) and release much more bonus material once the entire trilogy is complete on a separate disc. I think that's 100% the way to go - I'd much rather have a BD version. I can watch MKV fine but I can't create menus and everything and I have a bunch of friends and family who wouldn't be able to watch it if they couldn't just stick the disc in their players and navigate via a simple menu. Also, without a bunch of bonus content occupying the same disc as the film itself you'll be able to maximize bitrate. Seeing as the film itself is your prime concern (and not bonus features) I can't imagine why you wouldn't greatly prefer a BD-ready version assuming you have the capability to burn it, and it's not as if there'd be more bonus features right now if he released it as an MKV instead.

And you'd have the same exact re-downloading problem if the MKV was "not quite right," I'm not really sure what the distinction you're making between the MKV and BD-ready DL is in that respect.