More likely that devices for keeping personal data and specific personal computations will shrink and eventually be cybernetic powered by the body, meanwhile the cloud compute will be AI-powered with your profiles grabbed from the Net into a terminal u are connecting to play or work

I doubt that personal compute is going away completely. Private keys will play an increasing role of valuable data that needs to be kept secret

Cameras and microphones will be everywhere, that's for sure. I think that some people will be walking around and streaming directly from their brain once the tech is ready