Think what a huge story this would have been if Wisky had beaten NW and was still undefeated. If cancelled, this would be Wisky's 3rd missed game, which makes them ineligible for the Big 10 title game.
Not so fast, my friend, lol.
Per the B1G Ten:
"A team must play at least six games to be considered for participation in the championship game.
However, if the average number of conference games played by all teams falls below six, with the average rounded up/down at .50 (i.e. 6.50 or greater would round up to 7, 6.49 or less would round down to 6), then teams must play no less than two fewer conference games than the average number of conference games played by all teams (i.e. four games played if the conference average is six) to be considered."
Big Ten Conference
The 8 game regular season hasn't ended, so we don't know the average number of conference games played by all teams. Thus, Wisconsin is not yet eliminated solely by virtue of having played fewer than 6 games
because of the exception to the general rule (see above). There could be more canceled games in the coming weeks that don't involve Wisconsin, affecting the average number of conference games played by all teams.
After week 5, there have been 62 conference games played by the 14 teams, which is an average of 4.4286 games played per team. *IF* Wisconsin had defeated Northwestern and the season ended today, 4.4286 would be rounded down to 4, so a team would need to have played two (2) games in order to be considered for the B1G Ten Championship. Wisconsin would have played 3 games (all victories) and gone to Indy as the West Division representative (best winning % in all conference games).
Hypotheticals aside, Northwestern is in the driver's seat in the West Division. Barring 2 upset losses and Wisconsin finishing 4-1 (and being eligible to be considered for Indy), the Wildcats will be playing in the 2020 B1G Ten Conference championship game. If NW somehow managed to lose all 3 remaining games...well, there are too many permutations to worry about.