Imagine a relatively standard racing game. There's a number of cars and a handful of tracks. There are multiple ways to update the game. The developers could:

-Update the driving model and the racing physics of the game, making each car handle fundamentally different compared to before the update (handle better, hopefully)
-Add new cars and tracks to expand the content
-Add more engaging ways to 'hook' the player: a campaign with a progression that gradually unlocks new content, a way to score points that can be used to upgrade cars, etcetera
-Add new features, but relatively close to the current content, like motorcycles or rallycross tracks
-Add new features, but more transformative, like the ability to get out of your car and to get into firefights (turn it into GTA, basically). Of course, this comes at the cost of requiring a lot more development time.

Please imagine applying these metaphors to Colony Survival. Similar strategies could be used there. How would you rate each of these strategies - how much would they benefit Colony Survival, in your opinion?