Pokémon Omega Ruby and Pokémon Alpha Sapphire

Go Nintendo wrote:Mega Altaria

- Dragon/Fairy with Pixilate

Mega Lopunny

- Normal/Fighting with Scrappy

Mega Salamence

- can use the ability Aerilate

- when you change your Pikachu's clothes for contests, it gets special moves
- Pikachu Rock Star gets the move Meteor Mash
- Pikachu Ph. D. knows Electric Terrain
- Pikachu Pop Star knows Draining Kiss
- Pikachu Belle knows Icicle Crash
- Pikachu Libre knows Flying Press
- when you meet a Contest Idol called Lucia, she'll give you special clothes for participating in Pokemon Contests
- you will also get a shiny Beldum in game that comes with a Mega Stone

Link

Go Nintendo wrote:The following details were posted on Nintendo Koreas site and translated by Serebii

Mega Audino is Normal/Fairy with the Healer ability

Mega Slowbro maintains it Water Psychic typing and had the ability Shell Armour

Serebii.net wrote:Serebii Update: Pokémon Omega Ruby & Alpha Sapphire's download filesize confirmed. Requires 1.8GB to download. http://www.serebii.net/index2.shtml

Serebii. net wrote:The first images for this month have started to appear. In this image, from the magazine Weekly Shonen Sunday, it confirms that, in next month's issue of CoroCoro, due out on October 15th, a special serial code will be given. This Serial Code offers you a trial version of Pokémon Omega Ruby & Alpha Sapphire which appears to have you pick between Grovyle, Combusken & Marshtomp and ends with the obtaining of a Mega Evolution. We'll bring more on this as it comes
Edit @ 09:33: Mega Gallade revealed
Edit @ 09:39: Mega Sharpedo & Mega Camerupt have also been confirmed. Mega Sharpedo has the ability Strong Jaw while Mega Camerupt has Sheer Force
Edit @ 09:46: Primal Kyogre has a new ability called Sea of Beginnings and Primal Groudon has a new ability called Land of Endings. They activate what is called Strong Rain and Strong Sunlight respectively. It is not known how different this is to normal. Primal Groudon's new move is called Cliff's Blade
Edit @ 09:49: Mega Camerupts Speed is decreased, but every other stat is increased while all of Sharpedo's stats get an increase
Edit @ 11:25: With today's new developments, in addition to updating the Mega Evolutions page, I have also created pages for New Attacks & New Abilities

The next batch of CoroCoro information has been posted to Japanese forums and this batch showcases more information about the upcoming game Pokémon Omega Ruby & Alpha Sapphire. This continues on from yesterday's information and reveals Primal Kyogre's new move, Origin Wave. Rayquaza is also said to hold a secret to Mega Evolution. It also states about the demo version of the game. You will see a Mega Evolution for the first time in this demo, and you can then transfer it, as well as items you collect, over to the main games when they are released. It is also hinted that, if you play the demo every day, something special will happen
Edit @ 06:09: Mega Gallade details confirmed. It is Psychic/Fighting-type still, and has the ability Inner Focus

Serebii.net wrote:The next batch of CoroCoro information has been posted to Japanese forums and this batch showcases more information about the upcoming game Pokémon Omega Ruby & Alpha Sapphire. While pictures have yet to be posted, the information that has come out is set to reveal Mega Latios, Mega Latias as well as two brand new Megas, Mega Pidgeot and Beedrill. Images of these specific parts of CoroCoro are yet to come, so it's technically unconfirmed, but the leakers have shown other parts of CoroCoro giving credence to this. We'll bring more, and pics, as they come so keep checking back.
Edit @ 09:45: Mega Pidgeot is Normal/Flying-type with the ability No Guard and Mega Beedrill is Bug/Poison-type with the ability Adaptability. You can fly on Mega Latios & Latias in the overworld and find Pokémon such as Reshiram, Zekrom, Dialga & Palkia in the sky. Latios is exclusive to Omega Ruby and Latias is exclusive to Alpha Sapphire.
Edit @ 10:00: The Eon Ticket is said to return through a special distribution. This makes Latias available in Omega Ruby and Latios available in Alpha Sapphire. | Edit @ 10:15: This ticket will be distributed via Serial Code in an upcoming issue
Edit @ 10:04: The Legendary Pokémon are found on islands that can only be found through areas on the sky and is said to make it so all non-event Legendary Pokémon will be obtainable in Generation VI. You access the sky through the Eon Flute item
Edit @ 10:14: You can also encounter various other Pokémon in the wild within the clouds over Hoenn.