Ah. So it's some kind of a proposal, eh?

I don't know... I wouldn't create a topic just to tell people about my plans, but if you need opinions/suggestions about your idea, that's okay I guess. You realize that won't be easy, right? You need a decent hosting, a good CMS which will be able to take all technical job of your project, you need a decent design, and the most important thing, you need an audience - at least 10 people appreciating your idea and needing a place to post their fanart/fanfiction.
I once wanted to create a site that will be a central for all Simpsons fanworks in the Russian segment of Internet. (I still want to do that, just having strong problems with the free time.

) It's easier here because we still don't have any similar projects, believe or not - but it will be much harder for the English-speaking kind of project, because of already existing sites like SR, DA, FF.net and others. Probably you have to think of something unique for your project, something that will be there and only there and will be interesting and useful, to make your plans more viable.