They have already signed off on it and they will be adding another 22 episodes as part 2 of season 1, about season 2, no one knows yet for sure.
Hope this answered your question for know :P
Yes
Season 2 of Switched at Birth comes out on January 3, 2012!
Season 2 of Switched at Birth comes out on January 3, 2012!
Season 3 of switched at birth comes back on,on september 4, 2012
it goes by fast on TV
July 16th
June 4,2012
July 16th
september 3
January 3, 2012!
January 3rd, 2011
season 1, episode 10 :)