I seek to see this timeline continued, because I was enjoying it greatly.
The first thing obviously, is to decide how long you want Franz Joseph around. If your wanting Franz Ferdinand to be at the the helm, then you might want to ax him sometime late 1914/early 1915.
The next most important thing to decide is how soon you want WW1 to take place, and more importantly, what it is exactly that would spark it off. It could possibly start as a small minor conflict somewhere, and then escalate into a continent and world spanning war. Actually, you could combine these two problems and kill them with one stone (or bullet I should say.) Have the Serbian nationalists somehow manage to get close enough to Franz Joseph to assassinate him, (perhaps with internal help so as to bring A-H into war, which could set things up for all sorts of wonderful fun)
anywhosit, I look forward to this continuing. Subscribing.