Since the Chunichi Dragons don't want to make Wei-Ying Chen a free agent this year, it seems Chen's camp is now trying to get the team to agree to make him a free agent next year.
According to Nikkan Sports, foreign players that sign agreements with NPB clubs usually get an ancillary clause included in their contracts that allow them to become free agents when their contracts run out. The Chunichi Dragons apparently don't include this clause in their contracts so that they can indefinitely retain their foreign player's rights.
Further, it seems the Dragons don't want to give this ancillary clause to Chen because it means they lose out any potential posting fee he might be able to command, if / when they deem it the right time to post him. And of course Chen's camp is pushing free agency because it means MLB clubs won't have to adjust salaries based on posting fees.
In any case, it appears as though the Dragons and Chen and are now trying to hammer out a deal that includes something to allow Chen to head to the Majors after the 2011 season.