Girl Scouts of the USA will use a "Girls' Choice" process to choose the badges, which includes polling Girl Scouts to let the girls takes the lead on deciding which new badges will be created.
There will be two rounds of polling. First, girls will vote on which content area they're interested in within the Outdoor category, for example, Outdoor Recreation or Outdoor Survival. Once a majority vote indicates a content area, girls will vote on the actual badge topic, such as Hiking or Camping, based on their grade level in the coming year.
Here is the timeline:
October 31- November 30: Girls will vote on the content area they are interested in within the outdoor category.
December 1- December 31: Girls will vote on the actual badge topic.
March 12, 2015: The four Outdoor badges will be announced and content and product development will begin.
Girls can cast their vote here: http://bit.ly/1sS9nBA