Rondo's next contract will be as much about his play as it is about Celtic's leverage.
As a restricted free agent during the 2010 bonanza, I really cannot see him comanding a ton of attention. Will anyone even offer him something beyond the MLE?
Solid Pointguards (2010):
ATL, CHA, CHI, CLE, DEN, DET, GSW, IND, LAC, MEM, MIL, NJ, NO, OKC, ORL, SAN, PHO, TOR, UTA, WAS
No Pointguard, No Cap (2010):
DAL, HOU, LAL, MIN, PHI, SAC
No Pointguard, Potential Cap (2010):
MIA, NYC, POR
With Mario Chalmers performing well, Miami has bigger priorities including signing Wade and a center. New York is going to make a run, and will likely land a marquee free agent. Plus, D'Antoni's system requires pointguards that can shoot. Portland is a potential suitor, but could very well burn its cap space this off season on a 1 or 3, and will use whatever is left resigning Roy and Aldridge.
For that reason, I do not see Ainge extending for much more than $1 million or so above the MLE - and I do not see Rondo accepting more than 4 year. Something like 4 years, $28 million seems reasonable for both sides.