The official Japanese Pokémon website has revealed that the Pokémon Centers in Japan will each offer a special event Pokémon during the summer of 2013. A battle strategy card will also be distributed with each Pokémon. One of the seven Pokémon will also be distributed randomly from July 3rd, 2013 until July 7th, 2013.

Pokémon Center	Details	Dates	Image
Pokémon Center Sapporo	Emperte (エンペルト) OT: ＰＣＳ ID: 05153 Ability: Torrent Nature: Random Gender: Male Moves: Hydro Pump Ice Beam Aqua Jet Grass Knot Item: Air Balloon	Dates: 2013-05-15 to 2013-05-21
Pokémon Center Tohoku	Jalorda (ジャローダ) OT: ＰＣＴＨ ID: 05223 Item: Leftovers	Dates: 2013-05-22 to 2013-05-28
Pokémon Center Tokyo	Pikachu (ピカチュウ) OT: ＰＣＴ ID: 05293 Item: Light Ball	Dates: 2013-05-29 to 2013-06-04
Pokémon Center Yokohama	Dodaitose (ドダイトス) OT: ＰＣＹ ID: 06053 Item: Choice Band	Dates: 2013-06-05 to 2013-06-11
Pokémon Center Nagoya	Goukazaru (ゴウカザル) OT: ＰＣＮ ID: 06123 Item: Focus Sash	Dates: 2013-06-12 to 2013-06-18
Pokémon Center Osaka	Enbuoh (エンブオー) OT: ＰＣＯ ID: 06193 Item: Choice Scarf	Dates: 2013-06-19 to 2013-06-25
Pokémon Center Fukuoka	Daikenki (ダイケンキ) OT: ＰＣＦ ID: 06263 Item: Expert Belt	Dates: 2013-06-26 to 2013-07-02

Source: http://www.pokemon.co.jp/ex/pokecen_15th/

Pokémon Center Hot Information 15h Anniversary Vol 1 (ポケモンセンターホットインフォメーション　15周年 vol,1)

The official Japanese Pokémon YouTube channel posted an informational video to promote the event distributions at the Pokémon Centers.



Source: http://www.youtube.com/watch?v=btOj-I86ZEk