So the same AI as the wolves used to have then.
I'm a tad worried about the jungles, given that it looks like our current world seed creates an entirely different world in 1.2 - so even if we trim chunks they're not likely to follow any of the land/water areas we have now. Sure, Brad could transplant a jungle, but would it act like a "real" jungle with ocelots and whatnot?
I guess my question would be: when we update the server to 1.2, what happens after chunk trimming? Would the trimmed chunks regenerate according to the "new" world seed or regen with current landmasses?