I think that in the future more and more attention will be put on how "heavy" the guitar sounds... i think that right now there is guitar reinesanse (i dunno how to spell this word - sorry ) i mean almost anyone i know plays the guitar... every place i go i hear people playing... but guitar playing became less profesional... most of the people i know that play the guitar dont know even the basics of theory but they know "how to turn on the distortion" if you know what i mean.... so i think we will have a very heavy era in guitar... and this dont make me happy for sure