The first part of the 2016 Hearthstone Championship Tour, the Winter Season, has concluded, meaning that each region has one representative ready for the Hearthstone World Championship. You can see them in the image below:
As it is stated in the official blog, more seasons are on their way to entertain many Hearthstone fans as well as create an opportunity for many talented Hearthstone players to showcase themselves and fight their way up to Blizzcon. I suggest you check out the blog using the link above. It contains all the needed info if you are planning to participate or watch the event(s).