I personally either agree with or am neutral on the vast majority of this...
Except for EVerlasting Environemental effects - that I think is a GOOD thing. Unless you, say, cast rain and get things wet, poison shouldn't go away on its own. Nor should the water just evaporate in like thirty seconds, or oil just flee.
My only REAL complaint here is that blessed / cursed FIRE doesn't go away, because it should still burn itself out rather than becoming permanent. That way you'd be able to turn blessed surfaces into fire, the fire'd burn out even if it remained blessed, and then the thing would clear.
Otherwise, the remaining elemental surfaces seems quite good, if just because it doesn't make out of combat movement completely thoughtless, but rather makes you have to actually think tactically about what you're clicking on to SOME small degree, y'knkow? Just, again, blessed or cursed fire should burn itself out.
