Courtesy of PSBlog:

Wavesplitter:

We finally get an exotic Void Trace rifle! And it's weird!

It does high initial damage with a focused beam, but once it overheats, it loses strength and just burns your ammo (the thick beam).
The more interesting mechanic though, is if you pick up an Orb, you'll Supercharge it to do crazy damage for a short time.

And it has a neat futuristic-meets-steampunk aesthetic.

Strike: Broodhold

The Spider tasks Guardians with descending into a wrecked Tombship to stop a Brood Queen from birthing more Hive.

Here's a PS Underground playthrough of the entire strike in "an early Forsaken Build" (looks pretty polished to me). More interesting than the strike, I think, is the Q&A with Steve Cotton and Del Chafe, where they reveal some neat things (Apparently the "Two Truths and a Lie" connection to Forsaken was deliberate, and people did figure it out).

Keep an eye out for Wavesplitter's entire Lore Tab!

Armors:

In line with all of D2's exclusive armors, the Warlocks get crap, but at least the Hunters do too this time. The Titan set is generic, but that helmet looks real neat.

Someone at Bungie sure loves circles...