Grab your own free version of Dalewj’s new book (Diaries of Afterworld)!
I think it would be cool if mobs roamed around the map, either all, or just some types.It would reflect real life habits of many animals, picture a huge mob of Molesaurs or Mzaroids (forgive spelling plz) moving into a new territory like bison or buffalo roaming across the countryside.Would make everything a bit more dynamic, random and unpredictable, which is always good in a sandpit MMO Zen
Gamasutra has an interesting article (found here) on group movement