Something that might be worth adding to the timeline, but its a little different from the rest since its rather speculative.
Jim has said that he intends to do 20 Dresden books followed by an apocalypse trilogy. Well so far the books pace at between 1/2 and 1 1/2 years between books. If they stay on pace that puts the Apocalypse going down at in about 5-14 years or 15-24 ASF with the average being at around 19 ASF. its a pretty wide gap, I know, but its something we can be fairly sure is going to come around.
Not sure its something that fits the timeline, but every time i get somebody new hooked on these books they always ask me if anyone knows how long its going to last ans such, so the whole 20 books + apocalypse trology tends to come up a bunch