I was surprised he wasn't offered an extension, but am still trying to figure out what the situation is with his contract. Does he have one year left on his rookie deal, and if so did Portland pick it up? Shamsports lists him as making almost $8.8 million next year if they did...and quite a bit of money this year, too (more than JO's MLE deal).
I can see POR being cautious about committing the money only if they don't think he'll ever be close to 100%, or, on the other hand, they bet that no team will make a big offer with the upcoming CBA situation, and they'll be able to then lock him up long term for fairly cheap money (compared to what has been spent lately...) on a Perkinsesque deal.
I think they still want him, but after working out the salary and health calculus, are making a big gamble. The RFA status is their safety net in the whole thing, IMO.
Basically, he's in his 4th year now. The first 2 years were guaranteed, which means the blazers picked up the team option on him for last season and this season. He makes 6.76 million this year. A lot of money, but he's still a phenomenal talent if he can get healthy and they have invested a lot in his success; if they hadn't picked up a team option he would have been an unrestricted free agent and free to go anywhere; they would have lost control of him.
So at the end of this year, they'd ordinarily have the following options:
-Extend him to a mutually agreed upon contract
-not do anything and let him become an unrestricted free agent
-offer him the "qualifying offer" of 8.79 million. Once the blazers offer this, he is a Restricted free agent. Teams can offer him whatever they want up to the max; if Oden signs one of those offers, the blazers can match and Oden HAS to stay in portland or Portland can let him go. If Oden doesn't get an offer he likes, he would accept the qualifying offer, play one year for 8.79 million, and be a fully Unrestricted Free agent.
Now, usually (like the C's did with Rondo), teams like to avoid Restricted Free agency so that other teams can't drive up the price on a guy they want to keep. However, the Blazers (and most teams with '07 rookies) know that they will have the right to match any contract post-new CBA, so they are waiting to see if Max salaries go down and/or there are new, team-friendlier option years/cuttable contracts before locking in.
Basically, they know they will be better off by waiting.