Castle Season 6 Spoilers: Premiere Promo Video Shows Beckett Proposal; Episode 1 'Valkyrie' Title, Air Date Info

Castle Season 6 Episode 1 is just a week away now and in the latest spoilers concerning the show a new promo video has hinted at an answer to Castle's proposal to Beckett.

(Photo: ABC Screen Shot)A Castle Season 6 advertisement.

In the promo sneak peek video, Castle asks: "Will you marry me?"

"There's something that I have to tell you," Beckett answers.

Then the promo switches to voiceover commentary, which states, "America has waited five years for the answer to one question."

The promo video has had many claiming that the Season 6 premiere will finally resolve that question and open up the new season with a bang.

Series creator Andrew Marlowe has previously spoken about the proposal. He said, "What's more interesting to us rather than what she answers is what are the consequences of those answers?"

He added, "What the answers are, to me, and I think our core fanbase, the answers are a lot less interesting than the questions those answers are going to raise."

He continued, "And how these two characters are going to navigate their relationship in light of it. I think inevitably in this day and age, stuff is going to get out there.

"Some of it is going to be accurate, some of it is not. We're just pleased people care and people are talking about it."

Season 6, Episode 1 will be titled, "Valkyrie," and will air on Monday, September 23 at 10 p.m. ET.

The official synopsis describes:

"Last season ended with Beckett wrestling over whether to take a high-profile job in DC -- a dilemma made more complicated when Castle proposed to her.

"In the Season 6 Premiere of "Catle," Castle and Beckett will deal with the consequences of their decisions against the backdrop of a high-stakes investigation."