I updated 5 minutes too soon. The website for Gladius is online, complete with seven in-game screenshots and nine pieces of nice looking concept art. The logo for Gladius is also revealed, being a big capital "GLADIUS." I would have preferred "GLADIVS" sort of, but I'm a moron.
Andrew has pointed out that the third E3 teaser LucasArts released doesn't appear on the Gladius site. Also of note: those expecting a secret 8th game because of the 8 shadows on the LucasArts E3 page, the two Gladius characters have taken up two of the shadows. Only seven games it seems. Anyhow, check out Gladius. The game is being developed entirely in-house at LucasArts, by the way.