I wrote Dimarzio a while back and inquired if they would be willing to make a single coil version of Super II. Here was the response:
Sorry, but this is not something we’re comfortable doing. You might look at the Area 67 (DP419), which is a humcancelling Strat replacement with a sound that is fairly similar to that of a split Super 2.
I haven't seen any talk of the Area 67s here. I plan to try them at some point but curious if anyone else has given these a try and what your thoughts are.