Not really.   What are Trumps policies?   How would you know that he will be divergent from what Cruz likes to fantasize about -  he's never come close to even a framework of policy.     

 *I imagine he will be reading somebody's else's amorphous policy statement tonight.   Let's hope this speech writer is smart enough not to plagiarize President Obama.

Of course I'm a person who found Cruz more dislikable than Trump.   If my two choices were Trump and Cruz, I'd take the clueless Trump and hope he learns fast, over the rigid sanctimonious Cruz.  

*Letting him talk is a good way to show Trump is in the superior position, a triumphant candidate 'granting' an audience to one of the vanquished.  Smart political move and that is meant as a compliment.   Finding ways to build consensus is important to any leader.