I must say, that my images (and I bet most of those of other people too) cannot catch the whole projection. Our eyes see even more I'd say and I really cannot say what it is. If you like this image you really should see it live! It has much more impression than my photos.
At least it has been here the last 6 years. What I can say is: the light has gotten darker, the events are closing earlier and there's more advertising between the light areas. It seems the festival doesn't have enough money to finance so many lights (or the power, I don't know what's more expensive). The city is bankrupt (since years) and doesn't give a penny so it might be that they have big problems. But: I can tell you next year 1 month before. Here's the website, so you can also always look by yourselve: