Unless they buy AMD with that $40 billion they have laying around, no. But I strongly doubt that would happen. That would be a very interesting move, but it seems very un-Apple to take on someone else's business, especially when that revenue comes from supplying competitors.
But is this really a serious question? There was a reason Apple stopped doing this less than 5 years ago. Those circumstances that prompted the decision would have to reverse. They have not. In fact, if anything it's more true. x86 is the only real general purpose architecture game in town. Everything else is either specialized, not performant or embedded/mobile. Apple is doing the right thing by investing in that space, but there is no way that an ARM-based CPU is close to being able to run FCP.