Not helpful (I say that as a former Cruz donor who changed to a Trump supporter but would also vote for Cruz).
The best bet we have is for Cruz to see the writing on the wall, opt out of becoming part of a cabal trying for a "brokered" convention, and team up with and campaign for Trump.
Between the two of them working for a common goal (and balancing each other a bit) they could really light a fire in "Elitistville" .
If no one has the requisite 1237 and we end up with a contested convention, a Trump/Cruz deal is probably the most likely outcome. It just doesn't make sense for either one of them to allow anything else. If one of them was really, really close to 1237, then a deal with Kasich or Rubio would become a secondary possibility, but still makes less sense. For both of them, working together improves their chances of beating Hillary by guaranteeing some sort of win for them and keeping their supporters happy.
But even though this makes sense, the sticking point is going to be who gets the top of the ticket. Personally, I'm hoping for a contested convention, not just because I prefer Cruz over Trump, but also because if I have to vote for Trump over Hillary, I want some contested convention evidence that he's as good at making deals as he claims to be. Anyone can write a book.