Not releasing a patch with broken particle system absolutely makes sense, even if the patch is already months overdue.
I really like the screenshots of BoM although they would certainly look even better with AA working

I can already see myself flying over the Eastern front again. (last time was 2002-2003, and back then IL2 almost cost me my diploma thesis).
In the last years I have played mostly turn based strategy and tactical games (like JA2). But since that genre is dead as a doornail I feel my interest in flight sims is rising again to the old levels. The possibility of a finally working Battle of Britain sim and new Eastern front sim is an absolute dream.
Currently, I still don't own COD, last week I almost succumbed, but without the patch that would be anticlimatic at best. Once the patch is out, I will reconsider. Ah, and Steam has to go too, but I could resign myself to that. Perhaps, probably ..