CR1SSY,
You didn't mention when you're going...as WDW Trip nut said, they are having mardi gras with parades daily and concerts on Friday and Sat. nights until April 8th (I believe)
At Citywalk, they have entertainment in the evening on the outside stage...they have jugglers and such. My kids enjoy watching that...
In the summer, I'm sure they will be bringing back some other form of nighttime entertainment...fireworks perhaps...at least that's what they normally do.
There is also a movie theater right there and restaurants...there really is plenty to do at night, I'd say.
Karen