In think the first will be released at ChicagoFest. A fellow trainer had an astute observation. He's going too! Ilhe believes Niantic may follow suit from what Nintendo did and has done in events past. Mew will be the legendary grand prize for going the price of tickets.
It made perfect sense to me. I believe shortly thereafter our teams birds will be released worldwide. Lugia will eventually unlock the ability to score rival teams birds. Mewtwo, the roamers and Hooh will cone out eventually too.
I've got six shinies available for trade for Mew. Ill even give one for keeps if I can do a traceback jist for the Dex entry