With a revamped creature migration system and breeding system, the creatures will be more balanced across the land and dwindling species can see a resurgence. On top of that, the populations have been increased overall.
Although the strength of creatures has also been balanced to encourage new players to get in on the hunt, creatures that live to fight another day through by winning their battles for survival or simply aging will gain in power. So if you happen upon a pack of honey badgers, we suggest you run -- just run.
[Source: Notorious Games press release]