I think all Illinois fans really want for football in a general sense is to be competitive and entertaining. We all know (at least the objective among us know) that the playoff is a far, far distant ideal at the present time. Be in the 6-8 win range, be competitive in games, be entertaining to watch, and I think people will come to games.
From my personal perspective, I want Illinois to be in a spot where I want to feel like road trips from the Des Moines area to Iowa, Minnesota, Nebraska, and Wisconsin aren't going to be big wastes of time and money. I went to Illinois-Ohio State during the 1997 winless season when I was a senior. We had a good time and were treated well (with pity??) by the OSU fans, but man it was kind of depressing knowing that we were going to get kicked repeatedly during the actual game. Having taken a weekend trip to the Minneapolis area last weekend for my son's soccer game and to take in a Minnesota United MLS game, Minneapolis is a pretty short and easy drive and a fun town - as long as the football game will be entertaining and competitive.