I have no problems trying to create a concept for another JB map- its really all I know. I dont think i would be much good at bhop\surf\zombie maps. They are all different styles as people have previously posted. I am really happy to help and build upon our last creation. While it did take us months, it could have been quicker had people not said 'yes, i would love to join!' and then a few months later theyve gone AWOL. Newie pulled a MASSIVE effort for that JB map and its functionality.
Newie, if you want to do another JB map I can give you a larger hand with the concept sketches, and maybe the textures of the map depending on what we\the team agrees is the right theme\direction. In fact, I could possibly help with the concept regardless of what sort of map you want to create. Keep me posted