#8. ROH and New Japan are invading "McMahon territory."
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A lot of people don't realize how much power Vince McMahon actually can bring to bear. Not only is he the unquestioned lord and master of WWE, he also has a great deal of political and corporate clout.
So when New Japan and ROH decided to run a show from Madison Square Garden, one of the most famous arenas in the world and considered WWE territory, McMahon tried to use his various outlets of power to stop the show. While he was initially successful in shutting down negotiations for the G1 Supercard, they were forced to relent when ROH threatened litigation.
With New Japan and ROH right in McMahon's backyard--and on Wrestlemania weekend, no less--it's a sign that the new wrestling war could begin as early as next year...if it hasn't already started.