Eh, I've got little faith that SCOTUS would generate a favorable ruling. Heller simply acknowledged that the government cannot ban the possession of handguns for self-defensive purposes. From Scalia's own opinion:
"Like most rights, the Second Amendment right is not unlimited. It is not a right to keep and carry any weapon whatsoever in any manner whatsoever and for whatever purpose: For example, concealed weapons prohibitions have been upheld under the Amendment or state analogues. The Court’s opinion should not be taken to cast doubt on longstanding prohibitions on the possession of firearms by felons and the mentally ill, or laws forbidding the carrying of fire-arms in sensitive places such as schools and government buildings, or laws imposing conditions and qualifications on the commercial sale of arms. Miller’s holding that the sorts of weapons protected are those “in common use at the time” finds support in the historical tradition of prohibiting the carrying of dangerous and unusual weapons. "
There is plenty of room for SCOTUS to ban our favorite toys without overturning this precedent.