Matt Roush: You don't need to tell me how passionate and vocal Castle's fan base can be. This issue has dogged the show all season, and my take on such business matters (which I don't cover or monitor on a regular basis) is that more often than not, these deals tend to get worked out on their own timetable, and I urge fans to be patient. Castle has run successfully long enough that it deserves to build up to a series finale, and I'd be surprised if the stars don't eventually sign, even if it isn't until after the current season wraps. With that in mind, it's probably in the show's best interest for the season not to end with another cliffhanger unless things are ironed out by then. ABC would obviously like to have the show around a while longer, since it's still doing just fine on Mondays, but negotiations like these can be tricky and tedious, and right now, easing fans' anxiety probably isn't a terribly high priority.