Can you point me to where WotC announced they'll only be producing two hardbound books a year, and those books will be adventures? Because that's suddenly become the default assumption, but I missed the announcement.
On the up side, knowing that there won't be any further Monster Manuals, and that everything will be prepackaged and tailored to fit a specific adventure campaign will certainly free up a lot of room for 3rd-party publishers to operate in.
*Also, I've never stated interest in the Complete Fighter, or any similar book. I've referenced monster manuals, spell/item collections, and campaign settings.