I've talked to a number of folks at the high end of USSA, and if you listen between the lines, the main reason the next cup is likely to be on monohulls is that they don't consider fast boats (as fast as multis) to provide good match racing, and they believe that at its core, that's what the AC is supposed to be.
Although the Americas Cup is raced in the match racing format, it is not (and never has been) a "match race". Match racing is meant to be run with
identical boats. It is a test of boathandling and tactics, not boatspeed. The Americas Cup is a technology race, intended to award the fastest boat.
