My understanding the .360 will be released in levers mostly. So there will be a market. Although not as big as the .350.
I have been nothing but impressed with my (Jayden's) .350 legend. He's smacked five deer with it so far and other than a gut shot buck (which we did recover putting another few shots into it four hours later) the deer haven't gone more than 50 yards combined.
Good blood. Good internal damage. Distances from 25-75 yards.
-Jake