I always picture them getting caught in some financial scandal like Jim Bakker, caught so red-handed they have no choice but to confess. That should shake loose so many people there won't be anything with which to prop themselves up.
I would hate to think they just fizzle out. I'm hoping for severe public shame. Although... fizzling out to irrelevancy would be a pretty shameful way to die for an organization as haughty as the WT.