Future event?

I really love the direction the lore is going, and the Bilgewater event was amazing. This may already be in the works, but I believe that it would be a great Idea to have a similar event and tie it to a champion release. Compared to the new Summoners Rift and Butchers bridge, the Howling Abyss doesn't quite seem up to par. I think that a Freiljord event would be a good opportunity to give Howling Abyss a VU, and also update lore and release a new champion. Does anyone have any thoughts, or suggestions for different possible events? What do you think the next one will be?