Allright - I'm moving this topic to the GM section now. It may have few spoilers in it, timeline certainly will have.
Storm of Chaos (SoC). Warhammer world shattering event, Archaon as Everchosen, THE Chaos Incursion ever…
Many fans hated SoC, probably equal amount were neutral (didn't like it, but it is part of fluff), and MAYBE there even were few who did like it. But some even liked to erase the entire event. Either way - It is still part of the Warhammer timeline, and this topic is not to evaluate if the event was badly done or not. Now with the WFRP3 and especially with the Enemy Within -campaign SoC event is here again.
You find the updated Storm of Chaos Timeline (version 1.1) pdf document from my site's Rule Expansions. Link here: Kalevala Hammer
Updated version of the timeline will feature some changes, some corrections, but most of all - It features events from the new campaign The Enemy Within (WFRP3).
Now, TEWv2 mentiones few times, that it happens two years after the dead of Marius Leitdorf (which happened in the year 2520) and the map in the book also has year 2522 in it. BUT all the events in the book indicate that the campaign happens in the year 2521. This is the year when Warlord Surtha Lenk makes his "Spring Driving" and sacks Wolfenburg. Invasion which is only vanguard invasion to Archaon's coming invasion.
Offcourse Games Workshop could be rebooting the timeline and we just dont know that yet, but this is my timeline of the events with current information. Enjoy.