bugs are a pest there they come in big group out of nowhere and in big packs at times
then what if a big hole could be found somewhere in that place (the lion way) that would lead to a great event. not permanent event just an event that a DM could run of course
would be a nest with a big bug queen at the middle of it (make it big ! and impressive), a bug's nest maze with mighty bugs all over the place like a hordre of bugs when you get in.
(think of ants and their nest IRL)
You get the lesser worker bugs outside *already there in the lion way*
then you get in you get stronger of theise bugs.
as you go deeper they get bigger but same type as the one from above with some "defender" bugs that are protecting the maze
as you get closer to the queen bug you get even stronger bugs and if the team get rid of the queen then (suggestion) the bug infestation on the lion way stops
then some time later maybe in couple of weeks another queen bug arrives along with the bugs on the lion way
- that would be a quest that makes the world evolve and change from time to time
- The maze could be always different to be more realistic as they are different swarm of bugs going to make their hole
- those bugs and holes could be places in any forest like map with different Level of difficulty
More Ideas to give away if you like