Sorry not Sundance but Jim Hoft.
Given very poor results going forward, most of the polling prediction programs have Trump picking up no less than 252 delegates, That is with Indiana at 29 for Trump. That assumes a bad showing with a win of only a few percent (+5).
Even with that Trump gets to 1253 delegates. Likely a lot more if even one state breaks for him.
Thing is Cruz is going to get a slight boost on May 10th. He is expected to win Nebraska and get all 36 delegates, and the polling on that day shows Trump only getting 23 of the WV delegates. So Cruz might have a slight momentum coming out of that which might give him a slightly better showing in Oregon and Washington of the 17th and 24th then the current polls would indicate.
That said it is a better to assume the enemy too strong. But even with a few favorable assumptions given the Cruz, Trump has it in the bag now. If he does win Indiana big (on the order of 44 to 51 delegates), then the possibility of a contested convention is also very slight.