Unfortunately, it was said on the CEO thread that Chapek is Perlmutter's proxy, which is why he's getting the look. Perlmutter wouldn't be considered for the job himself due to age (74), and would prefer being puppetmaster versus in the public spotlight - as his insane behavior has shown (the whole tennis club fiasco).
Replacing Great Movie Ride (a POTC/HM/Horizons-level classic) with the Mickey Cartoon ride - for me, the catastrophic equivalent of replacing old Penn Station with New Penn Station - is all I need to know to see a continuing dimming future under Chapek. Was hoping for a turnaround under a new leader who gets(remembers) it.
While Ike is a big fan of Chappie, I would be hesitant to read more into it unless Iger has own hidden scandals and Chappie and Ike have access to the proof. Otherwise ... it's just a ... a rumour.
As to the GMR replacement, I hate the idea. There literally is nothing left from the Disney-MGM Studios. That said, I know someone who has seen a partial of the attraction and thinks it may well be better to many people than either of the two SW attractions. Really!!!