Uhm....I wouldn't be so sure about that...what would be the benefit, for Microsoft, in doing so rather than offering both platforms like they are doing now?Yes but i'm betting that Microsoft will be following Apple soon in that they will transition devices over too ARM. If everything is still on track, Apple are going to be releasing at least one ARM Mac by the end of the year (my guess is around November time).
Apple has strong processors, that they themselves produce. Microsoft would still be depending on a third party. And this third party's processors are slower than intel, for now.