Different game modes
I'm going to be 100% honest about what I think about the game real quick: *The game will never be super popular if there is only one game mode*
The average player will get bored of the same thing over and over. This isn't necessarily a design flaw, It's just something I think alot of people wish could change.
Here an idea for fun, different game mode to spice it up (similar to how Apex has a zombie mode now):
Sacraficial Frenzy: 8 survivors, 2 killers. Always takes place on the largest maps. 10 generators total to complete. Anywhere a gen can spawn, it always will spawn (i.e killer shack)