Kotaku has discovered that Edge Magazine's newest issue contains an interview with James Ohlem, director for Star Wars: The Old Republic, and within said interview he reveals the Smuggler classes' existence. Giving the scanned image featured above, we can only assume Smugglers are a Republic class -- that there's a Trooper standing next to him.
According to the Ohlem, via the scanned image, "Ord Mantell is a war-torn world and it's where the Smuggler starts off, when his ship gets stolen. He's pretty angry; imagine what Han Solo would've been like if the Millennium Falcon got taken." Sounds like a good place to start for the law-bending, blaster toting class.
Chances are good this will be a part of next week's E3 2009 news, so keep a lookout for more official details when that time comes. Until then, we'll be dreaming of blockades ran and witty lines read.