"After Korea I was 99% certain my weight would get selected but you still can't be completely sure so it's great to finally know that it's there," Stevenson told BBC Sport.
"Now I can relax a little, have a holiday and come back ready to fight for my place in the Olympic team," said the Beijing bronze medallist.
The inclusion of the -67kg category means heavyweight
, who won both the World Martials Arts championship and British Open last year, must now attempt to 'boil-down' if she is to reach the 2012 Olympics.
"Bianca has been our most consistent fighter over the last 18 months and she's been desperately unlucky with injuries, but the decision had to be made on what we know now and the form players (Stevenson and Jones) are there, but it was a really tough decision because it means leaving a potentially great athlete at home (come the Olympics)," reflected Hall.
is another who is now in a prime position to push for a place in the Olympic set-up after her -57kg division was nominated.
2012 weight divisions & potential candidates:
Women's - 57kg:
Jade Jones - 2010 Youth Olympic champion & 2011 World silver medallist
Caroline Fisher - 2011 Dutch Open gold medallist (-53kg division)
Sophie Dickson - 2010 British Open junior silver medallist (-59kg division)
Sarah Stevenson (2008 Olympic bronze medallist & two-time World Champion)
Bianca Walkden - 2010 World Martial Arts champion & European bronze medallist (+73kg division)
Martin Stamper - 2011 World Championship bronze medallist)
Michael Harvey - 2011 World Championship silver medallist (-62kg division)
Tony Grisman - 2010 British Open champion
Aaron Cook - 2010 European & British Champion, 4th at Beijing Olympics
"The confirmation of the weight categories brings clarity to the athletes and allows them to focus on a tangible goal," said Team GB chef de mission Andy Hunt.
"This announcement allows GB Taekwondo to build on their fantastic performances at the World Championships this month."
The news will come as a particular relief to 2010 European Champion
The 20-year-old entered the Worlds ranked at the top of the -80kg global standings, but suffered an
embarassing opening round defeat
to the little-known American Luke Ford.
However, his success prior to this event looks to have been enough secure his weight division selection for the 2012 Olympics.
"We've looked at performances across recent international events as well as the major championships such as the Europeans, and the recent World Championships, and have selected the weight categories that we feel give us the best chance of medal success in London next year," said Hall.
"Had the heavyweights done more (at the worlds) then it would have been a very tricky decision, but I still expect a lot of movement within the -80kg category and think there'll be more than just Aaron in contention," Hall told BBC Sport.
"We now need to do the work up to the Olympics and hopefully the results will be good enough if not better than in Korea and help us achieve aim of becoming the best team in the world by the end of 2012," concluded Hall.
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