Future removing in 123D serial: http://blog.123dapp.com/2016/12/important-news-about-the-next-chapter
Will be just keept Fusion 360 (new arriving): http://www.autodesk.com/products/fusion-360/free-trial?td=123D
tinkerCad for kids : ttps://www.tinkercad.com/ f
ReMake for fan of 3D HD: htthp://remake.autodesk.com/about