>>Trump will easily surpass 1100 delegates. He should have well over a 1000 by April 26th.<<
950 will probably be closer to the mark by then. 1000 will be real tough.
I was being a little too optimistic. I will say between 930 to 950. I expect Trump to get 75 of NY's 95 delegates. Of the 172 at stake on April 26, I expect Trump to receive 60% of them.
According to various sources, Trump has 742 to 757 delegates now. Add about 180 from NY and April 26th and you get 922 to 937.
Trump will pick up a sure 51 from NJ on June 7 and at least 100 of CA's 172. He will also pick up a significant number of delegates from IN, WV, and OR. Trump will have no problem easily surpassing 1100 delegates and it should be closer to 1200 even assuming Cruz takes MT, SD, and NE.
The dynamics of the May and June primaries could change significantly in favor of Trump if the perception is that Cruz is just trying to be a spoiler and split the party. He will be trailing by a lot in votes, states, and delegates.