i.e green-2 man strong,
blue - 3 man strong,
silver-4 man strong, g
old- elite/5 man dungeon strongman bossmode.
Having instead of set 7-8 wolves spawn, every 5 or so, will be a green dragon one, w/ a chance at better loot, 10-20 or so a blue, and have 2-3 silvers wandering around and the gold elite bossmode wolf chilling at his nice rock den with his wolfettes.
were this in place, every quest could have an optional challenge mode, where while killing the normal wolfs for the quest, you can option into killing a few green /blue wolves and getting a better green or then having the silver/gold 5 man boss level guys still require a group for the most part, but also drop gear equivalent to 5 man dungeon.
This would open the game up, and give questing and leveling the feel that scenarios have, where it is simply. assemble a team of crewmemembers, and do the best you can. Magnify the landscape by 1.5 just by gnomish world enlarger magic on people and trees, doodads, and then the landscape can be just as large, or expanded / phased if you want to make room for quest mobs that way.
Also having a Group Mode, and Challenge Mode, on each quest, could give some play through, maybe Gregor Mendel needed some Murloc Oracle Crone Bile so he can sneak past his hag wife at night to go out for drinks, so me and my buddies had so surmount that swarm teleporting murlock frost witch. This could give maybe a better green level option, or maybe an entertaining, or unique colored, or aptly themed piece of armor for such efforts.