I don't think that Intel will actually fall. Intel is spending literally tons of money in new technology and production capacity and in the long run, this is money well spent. and will most certainly pay for itself: There is exponentially increasing demand for production capacities on all technological levels: nowadays, virtually every device has a microporcessor: cameras, audio devices, alarm bells, doors, heck, even lihgt bulbs, screens, TVs, cars and even the friggin refridgerator and what not. And the fabs Intel is currently building will employ state of the art tools and technology and not some 10 generations old tech .
So, what Intel needs is to stay on track and just do their thing.
Although I really despise Intel's malpractices of the past, they are still a relevant player in the x86 world and what we need as many great players as possible as competition drives innovation and the users usually beenfit from better products at lower prices.