CM5 IO is half mini ITX, the purpose of CM5IO is to make a simple and low cost evaluation board for CM5. Well, CM6 will definitely somewhat compatible with CM5 but I am sure there will be new features that we want to add, so there will be new CM6 IO board for sure.
For ROCK 6 ITX, I think we are evaluating the LPCAMM2, which is higher frequency than DIMM/SODIMM so more dram bandwidth, which is important for AI.