Depends whether they're interested in seeing declining match revenue I guess. It's pretty obvious people are going to start voting with their feet sooner rather than later.
Mr Wenger knows he's fucked up too. I expect him to be quite ruthless this summer. Whether that's too little too late for next season I don't know.
I know its easy to get worked up too soon, but the manager is doing a good impression of dithering rather than making the bold moves that the situation probably merits.