I checked out Bulbapedia and found this:

(quote from bulbapedia):
According to the preview of next week's episode and its title, a new Pokémon will be revealed May 9 on Pokémon Sunday. This Pokémon, codenamed '××', is possibly another Generation V Pokémon.
Shoko-tan will reveal the new creature during the games segment of next week's broadcast. This would be the third Generation V Pokémon to be known if it isn't another forme of a currently-known Pokémon, such as the Spiky-Eared Pichu.


(From me):
Let's hope it's a new Pokemon!
And I hope its not just a pre-evolution or evolution of a Pokemon....

Wow you even included the links to bulbapedia.

I'm gonna say it'll be a legendary mascots since we already got a touph mascot like lucario and a cute pokemon like zorua.

I hope it's another cow Pokemon! Miltank pre-evolution pls. :3

I'm just hoping it looks cool.

Oh boy! Another Pokemon! Ooooh I am mega excited for this, I just hope it is a Flying-type!

I hope it's the Version Mascots or a Fire-type or the starters!

I'm really excited to find out what this Pokémon will be.
I just hope it turns out to be interesting.

They might do it like Gen IV: Release a semi-rare Pokémon (Lucario/Zoroark) then show off some pre-evolutions. Miltank pl0x?

Ooh, I can't wait! I hope it's one of the legends!

I hope its an electric Pokémon, but a legend is good! So is it only one Pokémon, or a couple? Anyways, this is VERY exciting!

^ ELECTRIC COW, OMG. PERFECT! :3

It's porbably Harmonica Pikachu.

No, but really, I hope it's the starters.

It's codenamed 'x x' Which probably it's going to be a kickbutt Pokemon , WATER TYPES ALL THE WAY

Well, I would be interested if it were an Eevee evolution. Or perhaps something dark-type or related to Absol.

Otherwise, well, I'm not really amazingly interested in sneak Gen. V peeks, for some reason. I want to be surprised when I get the new game instead.

No more Eeveelutions, please, unless they are cow-related.

Many have said a new pre-evolution or legendary, but I'm going to go with an evolution of an older Pokemon.

Come on Dunsparce. Maybe you'll be useful in real battles if you're some strange snake Pokemon that can fly.

I wanna see the starters I hope they're better than last gen's, because no offence Turtwig looks like a wannabe Bulbasaur...

^ Epic username ^

And I'd also like to see something related to Absol. It's one of my favourite Pokémon!

I want to see them too! Zorua is alredy my favorite though.

I'd love to see a pure Flying Type for once. I don't suppose there's a sillouette to look at? That's how they teased us with Zoroark. I doubt it, but maybe someone has seen something supicious?

I'd also love to see a Dark Psychic Type.

We've been waiting so long for a pure flying type, odds are it'll be a legandary.

I'm still all with SK hoping it'll be a cow (electric would be bonus) or at least that there WILL be a cow. It'll probably be a... legend, but now I'm also thinking it could be a starter.

Well today is the day (sort of) I'm really excited.

Well, I don't know if this was supposed to be 'Pokemon xx' (though it probably was), but three Pokemon silouettes have been revealed that are most likely the base-form starters. You can see the image in Pokenews.

!!! I want the grass bunny-looking thing with cute ears. <3<3<3 It has a sproingy tail.

The fireish looking one has a cute silhouette. It's feet are interesting.

The other one, well, I don't know what to think of it. It's ear/horn things make me think of Elfin Lied's Lucy.