The official Pokémon movie website has updated. Translations of the new entry follows:

Pokémon Elections 720

To commemorate the movie premiere, we're carrying out elections at the largest scale ever!

The Pokémon selected as number 1 will be given out for the Nintendo 3DS games "Pocket Monsters XY/Omega Ruby/Alpha Sapphire" at movie theaters screening "Pokémon the movie XY&Z: Volcanion and the Ingenious Magearna"!

Eligible Pokémon:
All Pokémon in the national Zukan, number 001-720, the sole exception being Volcanion.
*The form that will be given out and other such info can be checked with the Search for Pokémon feature.
*The gender will be random.

Eligible games for receiving the giveaway:
The Nintendo 3DS games "Pocket Monsters XY/Omega Ruby/Alpha Sapphire".
*Both the cartridge versions and the download versions can be used.
*You will receive the giveaway in the actual game you use.
*The giveaway can not be received for any other entries in the "Pocket Monsters" video game series.

How to vote:



Write the name of the Pokémon on the ballot and vote right away! Just write the Pokémon name on the ballot distributed in the store itself and put it in the ballot box in that very same store!
Stores where you can vote:
Official Pokémon shops: "Pokémon Center" and "Pokémon Store" (20 total throughout Japan)
Large scale toy store "Toys 'R' Us" (149 total throughout Japan)

Process:
1: Receive a ballot in the store
2: Write the Pokémon name on the ballot
3: Put it in the ballot box!



In order to vote through the Internet, you need a "Ballot with Voting Code":
Stores that distribute the "Ballot with Voting Code":
All movie theaters screening the Pokémon movie, Ito-Yokado, Aeon, Apita, Piago, Al-Plaza, Heiwado, Daiei, Fuji Grand

Obtain a Ballot with Voting Code from a movie theaters screening the Pokémon movie or from one of the many stores all across Japan distributing them! Then, select a Pokémon from the Search for a Pokémon to vote for feature on this site and submit your vote!

Process:
1: Get a Ballot with Voting Code from a theater or distriuting store!
2: Access the official Pokémon movie website!
3: Choose the Pokémon you want, then enter the Voting Code printed on the ballot! Then click the vote button!



You can participate in the election by using "7-Eleven"'s free Wi-Fi service "7-Spot"!
Connect to the 7-Spot with your Nintendo 3DS and follow the instructions to vote for the Pokémon you want as a giveaway!
*some stores do not offer this service
The 7-Spot voting starts at 9am
Go here for further information on the 7-Spot



You can participate in the election through the data broadcast done while the TV anime series "Pocket Monsters XY&Z" is airing!
Broadcast times:
Every Thursday at 6:55pm on the TV Tokyo Network
Days available:
Thursday April 21st, Thursday April 28th, Thursday/holiday May 5th
*this service is only available to those that can watch the TV Tokyo Network.
Go here for further information on how to vote



You can vote for the Pokémon you want as a giveaway by attaching a 52-yen stamp to the postcard that comes with the May issue of Monthly Corocoro Comic (on sale approx. April 15th) and mailing it in!
The May issue of Monthly Corocoro Comic is on sale approx. April 15th!

Source: http://www.pokemon-movie.jp/election/