Jonas at 25-26 will be on his first free agent contract. He's a RFA end of the next season and teams will look at his big body, age, the fact that he's a solid center on a winning team and throw a 4 year, 50 million dollar contract at him. He did have that one year playing over seas as well so it's basically his 4th year playing professional ball. He just looks like the same player he was when he got here. I personally hate when they just throw the ball into him at the high post because he's only got that one move - where he holds onto the ball and kills about 4-5 seconds off the shot clock, goes right and puts up a hook shot.
If some team is willing to give up an all star big for him, I say cash him in now and let them pay his next contract. That's just me though - I'd love for him to start dominating tomorrow and make me look dumn