Hmmm.... Higher end short focal length, that could be zoom or primes, so, by dates
Wishful thinking perhaps, but with the idea of an entry level FF camera body...
1990 - 35mm non L (very old, wild card make f1.8, add USM, make entry level L - £400 ? - 2013 ?)
1992 - 24mm non L (very old, wild card make f2.0, make 24mm entry level L - £400 ? - 2013 ?)
1993 - 50mm non L (very old, wild card add USM, make entry level L - £400 ? - 2013 ? )
- of course the 85mm, 100mm, 135mm & 200mm primes are all getting on a tad and could do with a refresh, perhaps IS on the longer focal lengths ?
Back in reality land....
1998 - 35mm (extremely likely replacement - move to 77mm filter diameter ? - 2012 lens for sure)
2002 - 24-70mm (very likely replacement at the same focal length - IS 25% likely, waterproof perhaps ? - 2012 lens for sure)
2003 - 17-40mm (random idea - 15-40mm, fits with 8-15mm fisheye focal length - 2013/14)
2005 - 24-105mm (quite likely - upgrade to make waterproof ? - 2013/14)
2007 - 16-35mm (possible 14-24mm - 2012 lens probably)
2007 - 14mm (replacement not likely)
2008 - 24mm (replacement not likely)
Whilst not shorter length, the 45mm and 90mm tilt shift lens are also likely at some point in the next few years