How will The Vampire Diaries leave fans hanging at the conclusion of season two? That's just one of the spoiler-iffic pieces of information producer Julie Plec and various cast members revealed to TV Guide this week.

Settle in and prepare for a major preview of what's to come over the next few weeks/months in Mystic Falls...

There unforeseen alliances ahead. So says Paul Wesley, while Plec says the vampire/werewolf war will escalate and "the next few episodes take us down the road of what Tyler knows, what he learns and how it impacts his friendships with Caroline and Matt."

Remember that previously teased flashback? It will show us a side of Stefan that is "very Damon-esque," Wesley says. "He's lost and he doesn't know what to do with himself. He's living in guilt, so he is just sinful and lustful. We get some blood addiction. We're going back to his days of heavy usage."

Say Uncle: The return of John Gilbert will challenge Jenna, Sara Canning says, as her former lover will cause problems for the "system [Jenna] has built and how hard she's worked to really build a home for" Elena and Jeremy.

Tomb it may concern: Katherine is "plotting her way out" of the tomb," Nina Dorev warns. "She's a woman who likes to be in control and when she's not, she's not happy and that's not a good thing right now."

On witch side? Regarding Luka and Jonas, Plec says: "We learn a lot more over the next few episodes about why they're with Elijah, what it is they want, what's driving them, what side they stand on and where they stand with each other as father and son. Their relationship gets really complicated and it really complicates Bonnie's life specifically as she learns more and more about them."

SEASON FINALE TEASE: "We have one more full moon that will be upon us before we hit the end of the season," Plec says. "Bad, bad things are going to happen as a result of that full moon. We also have this impending ritual - the sacrifice that will break the curse of the sun and the moon. That's where we'll end our season."