Quirion Ranger will definitely give the Heritage Druid plan a shot in the arm, but what that deck really needs is either Wirewood Symbiote to grind decks out and lure removal or a 1-cmc mana dork that dodges Wrenn and Six (or a preternatural speed boost that increases the chance of Turn 3 kills, but I doubt Quirion Ranger will grant that).
seal is fine but as for the other card..
NO! no no no no way This was a heavy needed reprint and elve decks in modern are gonna be Disgusting with this!
Honestly I am fine with it, it means the original will hold value for the collectors and "investors" while this one will drop in price for people who actually want to play the game with it.