Blu Ray currently for Video. As far as music, CDs will be it, there will be no future format for them basically. There was for a while DVD Audio discs and there is also SACD, but that there hasn't taken off really.
Basically, Blu Ray and the standard CD will be the physical media types as everything is beginning to switch over to digital. Just ask yourself, how many people buy CDs anymore? Do companies still even bother offering Portable CD Players and if they do how large is the market anymore?
As far as transferring your Laser discs and to what format, a quick google search seems like that Blu Ray would be the way to go. Though research the procedure thoroughly and find out about how much it would cost you to either do it your self or have it professionally done.