Intel are in trouble
I think Intel is in trouble in the longer term. The X86 very bloated legacy design is way too power hungry, but just as badly it also uses up way too much chip area to create each core. That means they can only create a few cores per chip and even then they use a lot of power.
Meanwhile ARM processors are small and power efficient. That means ARM can put many more ARM cores on the same chip and still be more power efficient. The first sign they are thinking along these lines is the ARM A15 which is for now, up to 16 cores. (Previously they were all about low power markets but now its clear they are also moving into markets with many cores). Plus with the efficient ARM design, in the future that could easily be used to create even more cores per chip. That is a serious threat to Intel even in their server market, as they are tied to their bloated legacy X86 design.
I don't see any way to improve X86 chips that couldn't also be applied to ARM chips with ARM still coming out on top. That's because the x86 design is so incredibly bloated. It needs to be clean sourced into a new design but Intel don't want to do that as they have spent years marketing x86 compatibility as so important. So Intel can't suddenly stop without undermining their current income from x86 so they are trapped.
At this rate, ARM could be the new Intel. ARM is a growing company increasingly hitting Intel at its weakest point. Its about time some serious competitor came along to shake up Intel's design.