I don't believe that the principled men we've seen run the RC would succumb to bribery. If there is anything underhand being planned then it will be a sudden announcement that GJ's father has taken a bad turn and GJ has to leave immediately. However if this happens then I'd like to see proceedings suspended until another day in the near future.
As we speak GJ will be preparing his statement with the help of his lawyers (probably New York lawyers after Tooles performance) and will be briefed on get out phrases, how to limit his perceived involvement etc.
I'm not expecting any great revelations from GJ but it will be good to see him face questioning - it might just bring him back down to earth a bit, to be answerable to some who do not fawn at his every passing of gas.
I predict he will fend off the easy questions, and when cornered will say that he'll make sure things get reviewed. Of course this is a fob off since reviewing something means nothing will change..
For me it will just be good to make him acknowledge how harmful and inadequate his procedures are, realise that he is still accountable to the laws of the land, and that he isn't yet the all wise, all knowing, all powerful deity that he someday expects to become.