One of the major announcement Bandai Namco teased, as per the trailer and as per their official website that they will organize the main Tournament "THE KING OF IRON FIST TOURNAMENT 2015". As per the announcement, there will be a huge prize up to a total of 80,000 $. This tournament will be mainly for Tekken 7 and it will be held in Japan by later this year in December. All players will be competing around the globe and will be organized by their local companies to officially nominate players from their side who will be entering this tournament. More announcements coming, so stay tuned. check out the trailer for this announcement.
Tokyo Challenge is planned on September and Osaka Challenge planned on October. After that, Japan Round which is scheduled on November. Then, Grand Final to determine the strongest player in Tekken Community. The Grand Final will be scheduled either November or December. More info will be added later about the entry and the guide on how to enter this tournament. For more details about this announcement visit official Tekken website. please check below in Source section about the website.
Sources: Tekken official website