To be honest I don't see the need for one, personally. That's not to say we'll never have one, necessarily, but there are simply other services out there that already do a fantastic job at crowd-sourcing data on video games. A quick Google search for "video game database" shows a few and they work quite nicely.
What I may be missing in my mind is what the need is. Why exactly do you want a video game database here on VGS? What on earth did you use it for on NA?
I never found it useful at all on NA, especially considering much of the data was outdated or simply incorrect. Rarity for instance was subject to change at a moment's notice if a palette of games was found in a warehouse or something, and to my knowledge stuff like that DID happen, and the site didn't seem to get updated. I could be partially wrong here but I know for a fact that I went searching to try and use the DB on NA a few times and noticed that info was not up to date.
There are other IMO more interesting databases we might make, such as a DB of Homebrew games (something we ARE working on behind the scenes). Would something like that fill the void you're looking to fill? Homebrew games are an example of something I see not existing in an organized manner anywhere right now. There are however many databases for, say, the NES library.