WetPaint article: What happens after JB's murder is solved?

Wetpaint article
It's an interesting question, but it's based on a theory I think is incorrect. They are linking finding out who ultimately had Beckett's mother killed with Beckett and Castle getting together. I've heard this idea said before. I just don't think it's going down like that. Why?In the original Star Wars trilogy, did Han Solo and Leia wait to move forward in THEIR relationship? NO! They were in the thick of battling the evil empire! Marlowe recently got a personal note from George Lucus...AFTER Knockout. My guess is that Lucus sees the epic possibilities Marlowe has pulled together.

Still, I have DEFINITELY been wrong before!
So, my fellow Castle fans, what do make of all this? Is Wetpaint on the right track?