I am mostly looking forward to be able to play all specs, not just having to choose 2 of 3 (or even 4 on my druid). It always bothered me to be basically locked out of one third of the class or have to change specialisation, which isn't really viable. On top of that, I think the artifact weapons will help get you up to speed on your off-spec, since now it mostly felt like going back to 0 on your off-spec except if you crafted a lot and who can really do that early to mid expansion.
Looking forward to reading a lot of icy-veins guides for trying out many different specs! :)
