They are probably going to fall between two stools.
The more anally-retentive "old-schoolers" like the thing Tarv translated for us won't be happy because it doesn't go far enough - "They left MAPS in for crying out loud - I didn't get to 50 wearing only a jockstrap and using a rusty dagger to be insulted by MAPS!"
and for those wishing to revisit "the old days" it'll probably be too harsh for comfort.
And some bored guild or other - possibly even a startup from here a la AS - will power through it. We know so much more - they will leave so much more in than was there on day one. They will undoubtedly mess up turning back the **** and leave in items and mobs that are inappropriate. I'd not be at all surprised to see the elementals in Splitpaw still.
And you can almost bet that when the anniversary comes the Fabled mobs will spawn in places totally unable to deal with them. And what about Halloween. They won't be staging the old "Hey look I'm a werewolf" they used to. It'll be rampaging skellies on all servers and I bet money they forget to exclude this one. Naggy and Vox aren't as tough with
Steel Rod of the Knight as they were with SSoY.
It's still a tempting proposition but is it tempting enough?