Why be "surprised if they dropped it"? IT being the 1.3x line....Canon's official spokesman, Chuck Westfall says in plain,simple English that, "It's clear that the time has come for the 1DX to replace the whole 1D series."
http://www.dpreview.com/articles/5149972341/canon-eos-1d-x-overview
Over the past several years, Westfall has stated, publicly, that the 1.3x sensor size was a "measure" Canon took, based upon technology limitations, not a deliberate choice. The success of the initial Nikon D3 since 2007, in providing full-frame lens coverage, and with it much better High-ISO performance was a development that hurt Canon's sales and deployment in several markets. The D3s versus ID Mark IV high ISO comparisons made it clear that the full-frame sensor size is simply bigger...and better.
Again, Chuck Westfall told dPreview that the 1DX is the replacement for both the 1Ds and 1D bodies. Besides better noise performance, which he raves about, the new camera will also do something that it is hard to do: sell more very expensive bodies!!! Canon 1Ds sales have always been in low numbers...same with Nikon D3x sales...by eliminating the low-cost option, meaning the 1.3x body, and eliminating the over-$7,000 body, Canon can probably force users to pay up in much,much higher numbers than with the 1D line offering two bodies!