Hard to define a theme for RNP, it has always had it's own style and RP, how do you define a group of people who each has his or her own style?
By what i know RNP is a casual RP guild, The RP events theme has changed much over the years, it began with trips then altered to light fun events, then altered to deeper events, and lately it is changing a bit into even deeper RP, more content, less fights.
If you can define this into a theme, well, we shall gladly call it thus.
But due to it's ever changing style, it's hard to define it's theme.