46 for the 1Ds would make me very happy!
36 mp for 1Ds I sell mine and I stop with Canon , too many pixels for a small sensor
the 7D is not a good camera
you win some, you lose some...
frankly though, I don't mind the 5D III dropping later rather than sooner ... I've got other things I want to spend money on this year and next year besides upgrading ...
I don't want to get between flake and motorhead, but I don't see why a 36 MP or even 46 MP image should slow you down if you have even a reasonably spec'd current system. I am only an amateur photographer but I am a professional working in the design and graphics industry. the last file I worked in was 500 MB illustrator file, and raster work I do regularly exceeds 250 MB. pretty sure that's bigger than anything even coming out of a phase 1 back.
if you were to get a computer with an Intel core i3 or i5, a mid-level production graphics card (not a gaming card), 8GB of RAM, and a 7200+ RPM hard drive all on a sturdy motherboard running USB 3.0 and SATA 6Gbp/s, you could have a brand new system that will chew through 36 MP files, both in terms of processing and in terms of input/output read/write speeds, all for well less than $1000. and that's a system that will last you into the next camera cycle. your external HDD should be running USB 3.0 at this point if you do professional photography of any sort.
if you are willing to put out just a little more dough, up to the $1500 range, you can get a SSD drive involved, and probably another graphics card in SLI/Xfire configuration. that might take you into one more camera cycle. computing power has never been cheaper, and there's no reason not to invest in your entire workflow, not just the front end.