A new trailer has come out for Omega Ruby and Alpha Sapphire. It showcases many new cut scenes as well as the currently announced Megas. It also showcases some of the bonuses that come with reserving the game in Japan. It has been confirmed that Europe gets figures for reserving their games, but they look different than the ones in the trailer. The figures coming to the US are so far unconfirmed. We may get ones like Europe, Japan, or our own exclusive set.
Although the trailer doesn't reveal anything to ground-breaking (outside of Primal Groudon... haha!), it does do a good job of further hyping the games. It also let's us know that the Shiny Beldum event will run from the games' release date to January.