'Castle' Season 7 Spoilers: The Wedding, Castle's Secrets And The Car Crash; Exclusive Details Unlocked! New Episodes Air 9/29

Latest "Castle" season 7 spoilers reveal an empty car in the crash site where season 6 ended.

Season 6 ended with Castle's horrible car crash with his bride-to-be waiting for him.  Castle's car was engulfed in flames making fans wonder whether he is dead, and won't be coming back for another season.

But since Nathan Fillion has already signed to appear in season 7, Castle's death would be highly unlikely.  In fact, new rumors are starting to circulate that he could have escaped the crash unharmed, and fans shouldn't be surprised to see him walking towards his bride-to-be.

These unconfirmed "Castle" season 7 spoilers sound interesting, but remain to be pure speculations.  What fans can be assured of this season is that they will get to know their main man a little bit deeper.

Current showrunner David Amann spilled the beans in a recent interview with TV Guide.

"There are going to be some unanswered questions and some really great mysteries that Castle himself is going to be investigating moving forward," he said.

Executive producer Andrew Marlowe also hinted on a more Castle centered season. "Why does he do what does? Why is he interested in murder? What has gone on in his past? These are rich questions we haven't really explored," Marlowe said.

Meanwhile  TV Line reports that Matt Letscher, who played Billy Chambers in "Scandal," will be joining the cast when it premieres on September 29.   Letscher will reportedly play the role of Henry Jenkins, a consultant that according to TV Line, will provide "Beckett with information on the most important case [Castle's disappearance] of her life."

Stay tuned for more "Castle" season 7 spoilers here!