Found it. Check the chart out. The owners' "flex cap" proposal would essentially lock players into a fixed dollar amount of compensation for the next ten years. I don't think the players necessarily have a right to have their compensation tied to a certain percentage of BRI, but I don't expect them to agree to a proposal that precludes them from sharing in the expected growth for the next decade.
http://espn.go.com/blog/truehoop/post/_/id/31668/nba-negotiations-in-a-handy-chart
http://espn.go.com/blog/truehoop/post/_/id/31668/nba-negotiations-in-a-handy-chart
But in the end, I'd guess the following: Take the yellow line (owner's original proposal) and the blue line (break-even player salary). Then draw a line a bout 2/3 of the way up between them. That's where they're going to end up when it's all said and done. There's no way they end up above the break-even line (NBA won't accept it), but the league will concede about 2/3 of the gain over break-even that they originally proposed. Eh, just a guess. Now we've got to get it done so we can get a full season. C'mon, everybody!