Briosafreak
Augur
They didn`t want to do it right away, Saint is right. The only time they talked about doing follow ups was when they were making ToEE, and they weren´t thinking about a sequel but a series of D&D games. Things with Atari didn`t work out completely well and they droped the idea to persue new ideas. When the Vampires deal comes out they decided to go for a sequel, in this case of Fallout, or if that wasn`t possible of a spiritual successor. Although i might be wrong in this or that detail things went more or less like this, so Saint is right.