Spoilers - TV Guide e E!

TV Guide:  

I'm worried that Castle has nowhere to take Beckett now that her mom's murder has been solved. Make me feel better? — Valerie

ADAM: Stana Katic doesn't think you should be worried. "There's a certain amount of closure, but it doesn't mean that the tale is done," she says. In fact, Katic is finding it much more fun to play the "new" Beckett. "She's more lethal because she's thinking more clearly. She's not running on emotion anymore," she says. "She's become more dangerous to the bad guys." Sounds like Castle better stay in line!

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Rsol90: Please can we get some scoop on Castle? Thank you.

A scene in the Christmas episode, titled "Secret Santa," will have a very romantic setup for Castle and Beckett. 'Tis the season for shipper heaven!