That is the most likely outcome and has been for a long time.... the Press and Cruz need the contested convention story to keep eyeballs.. and their supporters motivated, but the most likely scenario for months, and yes even with the WI defeat, is Trump is going to reach 1237 on the first ballot and all this hand wringing over a contested convention will be wasted energy.
The GOPe wants the contested convention to continue so they can keep running PAC ads attacking Trump in order to poison the well in the general.
Make no mistake, like it or not, Trump will be the nominee, and he will paste Hillary in November. He will have to fight factions of his own party as well as the Democrats the entire way, but Trump will succeed.
Cruz is nothing more than a hyper ambitious spoiler with a really grating personality.