This is great news.
I also would prefer to have ifdb in the domain name rather than ifdata or anything else.
In the medium term (once the existing site has been transferred to its new home) it would be interesting to see whether IDFB could work on MediaWiki software. If I could see the code I would be happy to try to answer that question.
Then in the longer term it would be good to approach the people behind IFWiki to see whether their content could be incorporated into the new site. Oreolek made an interesting point about the lack of a specific licence on IFWiki, but I suspect that it mostly contains text to which nobody is likely to claim any rights (e.g lists of external links).