My guess is as part of this they are discussing whether Claeys did everything he was legally required to do (report suspected misconduct, etc.) and whether he did everything he's obligated to do under his contract (which likely has more requirements). I am guessing they will also discuss whether what he did was desirable and if not what changes need to be made (training, suspension, firing, etc.).
The other aspect that will be discussed I'd guess would be the liability aspect. Could the U be susceptible to a lawsuit(s) from the victim or other victims based on a perceived pattern and if so would a step such as firing Claeys reduce that liability. If so, that may dictate Claeys' future more than what he actually did or didn't do...
I don't know how this meeting could possibly benefit Claeys. The only way I can think of is if he is shown to have exceeded the requirements of his office and because of that gets an extension he wouldn't have been given. But based solely on his Tweet I can't imagine that happening. He may get the same extension he would have gotten regardless, but I don't see how this could benefit him and I can see a lot of ways this could lead to some sort of punishment and/or termination. Though as others have argued in the long run that could benefit Claeys.
I do hope they don't just keep status quo and not extend him. Either fire him or extend him. There is no point in going into next year with a lame duck coach.