The plan addresses everything from property rights to wages to political parties, The Miami Herald reported Friday.
The plan calls for the privatization of business, and endorses the right of urban property dwellers in Cuba to remain in their homes, but old private owners will be compensated.
It is a clear rejection of Osvaldo Paya's Varela project, a petition signed by tens of thousands of Cubans to make changes while working within the communist constitution.
The proposal was prepared by Antonio Jorge, a professor at Florida International University.
Britney Spears on kissing Ryan Gosling, Justin Timberlake in the Mickey Mouse Club
Theater accidentally screens 'Nymphomaniac' trailer instead of Disney's 'Frozen'