More rings? Depends on where he ends up. Jordan made his team great, but Pippen didn't miss the open shot, and Rodman didn't let anyone else get a rebound. One man can't win it all and I'm not sure James' support staff is good enough.
Lebron is only 24 and has only been in the league for 6 seasons. He has already accomplsihed a lot. If he gets some supporting cast he may win quite a few rings..
"May" is the operative word. I'm not saying he's not talented, and what he as done for Cleveland is a near miracle. But winning one ring can be a feat (especially if you're Karl Malone or John Stockton). As it is right now, I just don't see the argument.