There's no possibility of boss creatures.
See, a boss creature requires something to be uncommonly hard, but still possible. And the problem with that is the only real way to do it is very valuable consumables.
I'm sure most people reading this have been through one of those in an RPG - the kind of thing where you beat it and realize you've just burned through 2/3 of those elixirs you've been stockpiling for the entire game. But Anarchy Online, at least, has no such thing. You're always using your most powerful abilities against enemies, because there's never any reason not to.
And even if they added in superpowerful consumables, they still wouldn't be all that useful, because, by and large, there's not even the possibility of a boss creature. A boss has to be *worth* the effort you put into it - in most RPGs it's worth it because it advances the plot. But in MMORPGS, there's equipment and experience, and nothing else. And if you start handing out disproportionate experience, people will focus on those critters (or team up) and kill them. And if you start handing out exceptional equipment . . . well, yeah :P
It's kinda unfortunate.