When answering the poll, please try to forget about the feasibility of your desires and just focus on describing exactly the kind of world that you would like to play in. You may use an existing mod/game/work of fiction or describe your own preference. Please describe it in a little detail so that the concept is fairly clear. Feel free to add any additional details you like. Please be as honest as you can be with yourself. If you really wouldn't download a new world mod unless it was absolutely huge, say so! If you can't stand the thought of installing an incomplete mod that will require numerous updates, please let us know. The accuracy of this information is very important to people working on these kinds of mods.
Note: I am not interested in negative replies that simply regurgitate the conventional wisdom that large mods of this scope are just vaporware/doomed to failure. Everyone has heard these statements before. They're pointless and not constructive so don't waste other people's time by posting them.
To give you an example of the kind of thing I'm looking for, here is my dream mod:
A dark fantasy/horror setting either based on Ravenloft (a D&D setting, for those of you who are unfamiliar with it) or similar to it. Mood and atmosphere are most important, so a good story with interesting characters is a must. I'm looking for something creepy and haunting that will send a chill down my spine. I'd also rather play a smaller world with a lot of detail than a larger world with sparse detail. I would love to see some sort of sanity system implemented using visual and auditory effects. Custom creatures and architecture are a big bonus, but not absolutely essential. I am perfectly ok with WIP mods. I'd rather get my hands on something I can play, even if it's incomplete, than spend years looking at screenshots of a mod I may never get to play.
Edit: Note that IP stands for Intellectual Property. ie. something created entirely by the modder, not based on someone else's work.