Pretty exciting news!!
http://www.The-Digital-Picture.com/Press-Release/Canon-2010-Summer-Lens-Announcement.aspx
http://www.usa.canon.com/cusa/about_canon?pageKeyCode=pressreldetail&docId=0 901e024801e8289
Canon EF 8-15mm f/4L Fisheye USM lens
Canon EF 70-300mm f/4-5.6L IS USM lens
Canon EF 300mm f/2.8L IS II USM lens
Canon EF 400mm f/2.8L IS II USM lens
Canon Extender EF 1.4x III & Canon Extender EF 2x III
Canon also to exhibit two new Super-Telephoto lenses:
EF 500mm F/4L IS II USM and
EF 600mm F/4L IS II USM are being developed
http://www.canon.com/news/2010/aug26e.html
Rich