I found these rumors while scrolling down Pokejungle's comments on the reviewers having received their copies, supposedly this is from an Italian lady who got the games early:
"My review for Pokemon X and Y is coming out on October 4th and I just got my review copy in today. Im not allowed to post pictures of the final evolutions but I will be posting shots of in-game, maybe a few new Pokemon, I work for an Italian gaming website."
>-The names of the final evolutions are Frogue, Chesknight, and Kyubixen
>-First five gyms are Bug, Fairy, Electric, Fighting, Steel,
>-Alexa is a reporter from Lumiose City who will appear often in bustling cities to do reports on you and will battle you afterwards, the battles can be seen on big screens in Lumiose City
>-Theres a new bird Pokemon named Aquerial who is a phoenix with soaked wings and is Water/Flying
>-There's a new Pokemon named Koadly who is a small bear/koala
and is Fairy type
>-There's a new Pokemon named Gorem who is Ground/Grass and can learn the move Wood Hammer
>-Professor Sycamore and Master Calix, an old man in Shalour City, are both learning about Mega Pokemon and Master Calix gives you a level 20 Riolu holding a Lucarionite to train
>-Theres a Gym Leader with a blue jacket and yellow hair who you have to escort to another Gym Leader with gems in his hair. They're supposed to be best friends and the Gym Leader with gems closes his gym down for the time being while he's out
>-A boy named Aero owns a Pikachu and claims to have seen you in one of his dreams
>I'll be posting more screenshots in my forum thread tomorrow but I can't post anything starter evolution related"