I THINK:

Future canon line-up:
1ds series : Full frame pro. Either Dual processors and/or a faster buffer management system.
3d Series : Replaces 1d series. Will either sport a FF or the 1.6 crop sensor. If FF, MP will be less than 1ds while everything (AF, Video) will match 1ds. Chances are it will be 1.6 crop in pro sports body! Dual processors. FPS will be higher than 1ds.
5d series: Prosumer. Will be a FF sensor from the 1ds lineup but with reduced MP. If the 3d is a FF, then the 5d Series could share that exact same sensor. Prosumer body with trimmed features from 1ds. Dual processors if video is top notch else just one processor. Trimmed down AF.
7d series: Prosumer versions of 3d series with a 1.6 crop. Rest of the features will match 5d series except for FPS and dual processors.
consumer series: 60d likes.