And it's still a better method than GenIII Feebas.

Found another mystery in Pokemon X and Y.
An npc in Anistar city says the following.
"I heard about the incident in Geosenge town. They say that a group dressed in red managed to find Xerneas asleep somewhere. A few years ago another group of people came around here, asking the same questions."

...I wonder who this team this.

No clue about XY story, but isn't Team Flare red?

*edit: Didn't quite read the second part :o
Foreshadowing for the next game maybe?

Or that rumor about more regions outside of Kalos...

I wonder how much more mysterious things we'll find if we look into XY... These things are pretty exciting.

If they're trying to refer to ANOTHER team dressed in red, it could be Team Magma from the Hoenn region.

And yet another hint and 3DS Ruby/Sapphire remakes would be excellent...

yea it fits if ti team magma as well

It's Team Rocket.
Reasoning: That island near Sea Spirit's Den with the patch of grass in an "R" shape.

"R" Could stand for Ruby :I

You're right.
*Gasps*
Lysandre's name contains an "S," "R," and "E!"
Clearly, Lysandre is an indicator that Gen 3 is getting remade!
Wait!
Serena's name also has an "S," "R," and "E!"

GEN 3 REMAKES EXCEPT EMERALD SINCE THE 3RD GAME HASN'T BEEN INCLUDED!