That's correct but to clarify. 4 seat airplanes coming from MOSAIC update (Dan Johnson liked to call them MLSA or Mosaic LSA) can be flown with 4 people by a private pilot. Only Sport Pilot restricts you to fly that MLSA airplane with 1 passenger and 1 pilot. It is a pilot certificate restriction not an airplane restriction. Still the airplane can be fast up to 250 knots as long as it can do a clean gross weight stall of 54 knots. No airplane exists that has that kind of speed spread but basically that will be allowed, and also electric propulsion or turbine engine would be allowed. Even twin engines are allowed for airplanes by MOSAIC but ASTM standards for such aircraft do not yet exist. No twin engine work is done yet by ASTM sub-committee.
Gyroplanes 2 seat are slated to be allowed by MOSAIC but there is no sub-committee in action yet actually updating standards. There is some guy running the Gyroplane sub-committee but in reality, he isn't doing jack. Has not even contacted major manufacturers to make a working group active yet. I am hoping I can do that and invite active manufacturers and active pilots and CFIs to participate if not help write the standard to at least vote on it and provide feedback.