If he holds out into the season, he will be docked a game check for each game missed. So he could conceivably forfeit his entire salary if he was that determined to sit out.
Which is why it's likely he shows up at some point. As important a player he is, he still has very little leverage. He might sit out training camp, but that won't sit well with the team, and no way he sits out into the season.
It's also highly unlikely you'll ever see players hold out into the season anymore. That used to happen mostly with rookies, who had yet to sign a deal, so they had nothing to lose and plenty of leverage. Not the case anymore with the new CBA.
Vernon has big money sitting on the table. He may not be satisfied with the amount, but no way in hell he forfeits that much money.
[ Edited by SofaKing on Jun 16, 2014 at 6:20 PM ]