Bitcoin is a protocol and an asset, and both are close to impossible to change. I would be shocked if there was ever consensus on a base layer protocol change to add privacy features, especially considering how relatively mature Bitcoin is. If that is a dealbreaker, Bitcoin is a voluntary system. No one will force you to use it. I personally think problems with the current layered model or even Bitcoin privacy in general are greatly overstated. These things do not exist in a vacuum - compare them to our current financial system and you will see how incredibly superior it is.