Hibridación y convergencia de los sistemas de control: del poder constituyente al juez constitucional

Kelsenian model is characterized as a concentred constitucional review model wich is in charge of a special judge with a legal regulated competence.
In contrast, the American model grants higher discretion to the controllers, leaving to judges the self attributed monopoly of the constitutional review and the construction of its rules.
We are attending to an expansion of constitutional courts competitions, and an universalization of constitutional justice, which tends to weak the contradiction between the American and the Kelsenian constitutional review model. This represents a process of mutual hybridization and convergence of the constitutional review models, produced by the transformation of their rules and its historical characteristics.
The jurisprudential transformation of the rules of constitutional review models is an attribution or an excess of the constitutional judges competences?