By which, the newsies mean a Republican convention where no candidate has enough votes from primary elections to say, "I got the votes, I'm it, let's get on to the balloon drop". Newsies love the idea. It would have the Republican convention generate real news, that they could cover, live and in real time. It would be a giant step backward to the old times, before primaries, where presidential candidates were actually selected at the conventions.
Don't hold your breath. We haven't had Iowa or New Hampshire primaries yet. Both events will narrow the field significantly, and the followers of the drop out candidates will float around and settle behind someone else. Chances are excellent that someone will go the the convention with an unbeatable lead. We just don't know who that might be.
The newsies are talking it up 'cause they would love to cover it, but I don't think it will happen.