Trump could prevail on a 2nd ballot if the delegates came to their sense, but Cruz simply doesn’t have enough delegates to do so.
It is the 3rd ballot and following that will allow GOPE creep to set in. JMHO.
The GOPe creeps will have what they want on the 2nd ballot unless the rules are changed beforehand to untie all the delegates, most of whom were selected by local gopes. The will vote for the GOPe selection however derived and whomever it may be if/when they are not tied to voting for a particular candidate. Untied they will vote overwhelmingly for Gabriel Schmidt of Squeaksburg Iowa if that is the GOPe selection.