I think it's safe to say that the blues will be played in bars and in practice rooms for many many years. In that sense, the blues is secure (and will probably attract new inovators with time).

My only concern is seeing the blues become too "commercial." Kinda like how "hair metal" drove a whole generation of music listeners away from "traditional" metal/hard rock. I think the blues is especially suseptible to this, for if it's too polished, it looses that emotion that makes it the blues in the first place.

Something in my mind sais "it's the inperfections that make it humanity."