As we reported last week, a blackmail letter threatening to disrupt a Pokemon TCG event in Japan has led the organizers to cancel several other events. Scheduled events on April 20th and April 29th have been canceled.
Pokemon posted its sincere apology for having to cancel the events, and asked people for understanding during this time. Pokemon Japan will post any future events on its site but it is currently undecided when they plan on holding new events. The investigation is still ongoing.
Source:
http://www.pokemon.co.jp/