[Fallout]

The game needs new content to make players want to log in every day not some quick fix like gym days and contests.

Personalized character development is needed. Expanding on the skills already in place would be a good start. Each skill could have a sub skill/s that branch out into a skill tree that could give players more choice in how their character is developed. You could have minimum skill requirements to learn new skills and could even combine it with careers for more choice.