Canon Rumors has info that Canon will bring some new EF-S lenses for its APS-C format cameras during the first half 0f 2013 to go along with the rumored Canon 7D Mark II.
Rumored lenses include an EF-S zoom fisheye lens, as well as a new macro IS lens. As noted by CR, the EF-S 18-200mm IS lens is due for a replacement and would be a logical choice to get Canon’s new STM focus motor to play nice with video AF on entry-level DSLRs like the Canon Rebel T4i and its eventual successor.