Disney protects The Mouse. The Mouse is Disney's core, its identity. Anything that looks like a threat to the brand, The Mouse, is done. Over. Fini. Anything that is a stain on the family friendly identity of Disney must be eradicated.
WIth that, Gunn is done.
I've been wrong before, and I'll be wrong again. But I think that Gunn, with the outed pedo jokes in this environment, is a done deal.
Guardians is too valuable a property to shelve, so it will continue. The actors have done their "duty" to Gunn, but I predict that they will show up for work when the time comes.
Feige is smart. He'll find a director that can carry the load.