Wave respawn will not be used in League this season.
I will consider using a mix of classic and wave next season. I need to test maps. I have a few maps figured out already.
Wave respawn works really well on some maps, and not on others. Maps that have spawns outside of the flag area or not in route to and from the flag are usually good maps to have wave respawn.
The current Maps that I have found to do well with wave respawn are:
Abbey2
Druglord3
Filtration
Commune2
Subway2
Rommel - the update will have fixed repsawns to make wave work well on this map.