nottooloud,The SQs have a 36 bus core design that will accommodate the DX expansion stage boxes while the CQ does not. The CQ limitations are what they are and the market place will ultimately determine whether the CQ is crippled.
Alex, there is absolutely no correlation between dormant core size and heat load: the number of active analog I/Os are usually the primary heat generator. I would speculate the size difference between the 36 bus core of an SQ to the 42 bus core of an Avantis would be very small and of very little consequence.
Hugh