Ideally, a new 68K would be as compatible as the '020/'030 but have pipelining and scalar advantages that would speed up operations and make them more concurrent.
Hi Iggy -
This is what the Apollo core does. I am sure you know that but just in case you don't, there is a good write-up on the Apollo core wiki in the instruction fusing, bonding and other goodness. I believe most instructions are down to 1 clock.
Cheers!
