Season Four Sneak Peeks!

At a private hilltop location in L.A., The Hills cast and their fans on Monday celebrated the Season Three finale with a blow-out party Monday.

While it was sad to see Season 3 come to an end, there's a whole new year of drama to look forward to in Season 4, beginning in late summer.

Here's a look at what's next for Lauren, Lo, Audrina and others, via some hot spoilers and gossip TV Guide unearthed at the party …

Boys, Boys, Boys -

Expect more, more, more. Lo and Lauren throw a big party in their new pad and invite boys galore. The ever-single Stephanie Pratt feasts her eyes on, well, everyone, and Lauren Conrad may have a new beau (Doug Reinhardt?) in tow. And as for Audrina and Justin Bobby? They’re definitely back on. As Audrina herself says, “[Justin] has always been there for me, and he still is.�

Friends in Lo Places

As far as Lauren Bosworth (Lo) is concerned, the tension has little to do with her - despite a self-described “foul face� when the topic comes up.

Next season, expect more from Lo’s perspective. -

“It’s disheartening to see me turn into such a bad guy on the show,� she said. In Season Four, “You’re going to see the other side of the story. I think people need to remember that it’s Audrina and Lauren’s relationship that’s having problems…. It’s not my relationship to muck up.�

Lauren-Heidi Drama -

Don’t hold your breath for a relationship thaw between LC and Heidi Montag. Despite Heidi’s good-will appearance at Goa, Lauren says she “will probably not� reconcile with Heidi. Ever. As for the growing tension among Audrina, Lauren and Lo, it’s just a part of growing up, the girls say. Audrina says she knows her new focus on her career has meant that she’s not around as much for Lauren.

Working Girls -

As far as careers go, with Lauren officially working side-by-side again with Whitney Port, will there be a turf war at People’s Revolution?

Whitney says no.

“I don’t like to be alone,� Port confided. “I’m used to having lots of girls around me all the time, so it’s great to have [Lauren Conrad] around.�

As for her own ambitions, Whitney Port may soon be joining the ranks of Lauren and Heidi with her own line, but details are TBD.

For now, designing clothes is simply her “pleasure.�

Lauren Bosworth, meanwhile, sees herself hosting for networks like E! and Bravo, and Audrina Patridge has acting on the brain.

To Patridge, her just-announced movie debut in Into the Blue 2 is a “stepping-stone� that might lead, she hopes, to a career like Charlize Theron’s.