I would like to add one thing on the topic of: Will Fallout 3 have a fanbase of comparable size to the one Fallout 1/2 have now? I expect it will be bigger. But I also think that depends on how many Fallout games are released and what the quality is like. Most people would agree that Fallout 2 is better than Fallout 1. Fallout: New Vegas may well be better than Fallout 3. In that case, people may gravitate towards that title. Or Fallout 4, or any future release. If Fallout 4 is done in a completely different engine years after Fallout 3, they may have a completely different fan base. If Fallout 3/New Vegas are considered similar enough to be the equivalent of what people might consider as Fallout 1/2, then I would expect the fan base/sites to primarily group them together (much like this site does with 1/2). Will there be some kind of fan base? Undoubtedly... just looking at Bethesda's other titles, Morrowind and Oblivion, we can see they continue to have a strong following (Morrowind nearing the 10 year mark).