Blu rays IS HD. They're movies that can be seen in high definition, or maybe you meant HD-DVD, then yes, those became obsolete years ago. I think DVD still has like 2-3 years of life left, after that movie companies will start selling solely BD and stream their content online/offer it through DL.
But yes, more things should come equipped with BD players in the years to come, like laptops, gaming consoles, desktops, etc.
I'm obviously talking about HD DVD