Tim Cook, the supply chain master leaves house the moment the very reason why he got hired in the first place is in dire straits.
I don’t think that the successor will likely change that, since Cook made sure, no one is remembering Jobs anymore and as top manager won’t pass a reversal of many of his decisions.
So he will lead through a CEO he controls. Only if the new guy takes on the battle in the name of product there might be a chance but this would mean, Cook and the new CEO have to be dismissed. So popcorn times, I think Apple is going to stay as boring as it got, while the quality constantly declines.