I read that article about couple's counseling. Been a viewer since episode 1 and agree, no matter how they handled Castle going it alone, it would not have been the same. Already decided if renewed, I was done. Time better spent reading. From other "articles" appears the writers are not pleased with needing to use the "alternate" ending. Monday's rating should be high!!
I don't feel that it's a show that requires a special ending. I'd be happy for them to just finish up a case and leave it at that. There's the whole LokSat plot, but who really cares about that -- I know I don't. My sister suggested Beckett and Castle ride off on their new motorcycles.