Sounds like the only way to really have what you want is to use something based on what the game engines uses, plus taking your mods into account. Maybe in game viewer, or something accessed from the main menu that can give you a rough idea of what it might look like? Since its world gen settings PLUS seed number, only way to get an accurate picture is to just piggy back off the engine.
Curious myself and found this thread. Be nice to see an ariel view of what I've generated so far, almost like viewing the 2b2t map and all of its changes.
