No "real primary" is possible without the financing and agreement of the states involved.
A re-vote was suggested in Michigan, where the estimate by the Secretary of State was $10 million (probabably grossly underestimated), and with the state committed to holding an early primary, by law, the suggestion died midst horselaughs. A re-vote, or "real primary," whatever that is, would have to be with the approval of the state legislature.

Please note that the legislature enacted laws that apply to future primaries as well.

In Florida, approval also must come from the Florida legislature.

Stated baldly, the two states will not agree to another "primary," period. Whether they are willing to change their enacted statutes for future primaries remains to be seen.