Hot vampire sex. Hot vampire sex. Hot vampire sex.

Julie Plec has teased it's on the way for Elena when The Vampire Diaries Season 4 kicks off in October, leaving fans to really ask just one question: With whom?!?

The obvious answer is Stefan, of course, but Plec remained a bit mysterious at Comic-Con, simply telling William Keck of TV Guide Magazine that the lucky bedmate would be either Stefan, Damon, Klaus, Matt or Elijah.

What else did the producer and other cast members tease?

• Stefan will open the season with a new motorcycle.
• "Enemies will become allies," Ian Somerhalder said, adding that Damon and Tyler will down a few drinks at the bar.
• The fourth episode of the season will flash back nine centuries and focus on Rebekah.
• What about Tyler and Caroline? "Shirts are flying off in our first episode back," Michael Trevino simply said.
• Jeremy will share a history with Grace Phipps' April, and perhaps some sparks as well, but Jeremy R. McQueen added of his long-suffering character: "He and Bonnie still have some unfinished business."

The Vampire Diaries returns on October 11.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.