According to Nikkan Sports, Hiroyuki Nakajima is planning on asking the team about being posted to the Majors during the upcoming off-season. Nakajima still has two years left before he earns his international FA option, so the only way for him to go to the Majors would be to get posted.
Club president Shinji Kobayashi told reporters on the 10th that he'd like to give as much consideration to dreams that players might have and seems to be open to the possibility of posting Nakajima. But Kobayashi also said that he hadn't heard anything from Nakajima yet and that it would be tough to part with Nakajima because of what he brings to the team (both in terms of skill and popularity).
An unnamed MLB source is quoted as saying, "There are a number of clubs that would be interested in him. But Japanese infielders have struggled in the Majors, and realistically, he's more of a second baseman. He probably won't fetch a very high posting fee."
In the end, the Lions will need to consider which makes more sense: posting him before he earns his international FA option and grab whatever posting fee they can get, or risk having him walk away for nothing when he does earn his international FA option.