The idea of having certain ai call for back up. By sending out a call for more help. But just 2 or 3 or so to come after you. For some more of a challenge. Maybe have the function if you take out the ones calling they won't come.
Have random ai give you more of the feeling that you can't just lie around in certain areas for a long time. More jump scare ai creatures that make you want to use your hunting skills more. Like some can pop out chase you you from bushes tall grass feeling. Flying swiming too.
The idea if your bleeding you may get hunted by ai too. Way to have fun with the healer dragon by bringing him/her along too.
Another idea if you kill some ai that's in a group. Have them hunt you down to a limit if u leave any alive. Revenge they could even attack your nest/ clan bloodline.
When ai is not a challenge the survival feel fades fast. Even more so to have that survival jump feel hunting and trying to survive. Keeps you on your toes too and brings silly fun.
Can have easier ones, and ones that keep you hooked and give you that feeling of looking everywhere while questing hunting so on.