Wait.
This isn't a Wednesday night Twins game in April where they say "hell with it, lets reschedule for June". Bringing in a 5-7 NIU team with one week's notice is a huge rating hit to ESPN, breaks multiple contracts charter groups have established, 7 days to cancel and refund tickets that have already been sold and then resell them, and then the countless dollars fans have spent on flights and accommodations. Let's not forget who is running the show, the Big Ten will have significant repercussions against the University for not playing this game whether formal or informal.
There is 90% certainly this game is played.