I'm kinda hoping for a Pokemon that we haven't seen any form of yet, you know, something new? Aside from that I'd be pretty happy if we got a Steel-type Eevee, that think would almost instantly get a spot on my team.
No, they said an evolved Pokémon, not a pre-evolution. I'm hoping for a Helioptile evolution, or a Skrelp evolution.
The Pokebeach leak states that Espurr will evolve into Meowstic, not the other way around.
A few details from the leak have been muddled up. I wouldn't be surprised if he just got the names around the wrong way and Meowstic evolves into Espurr. I do think it's more likely they'll have a pre-evo that just evolves depending on gender though.