What series are you waiting to be finished before reading?

This might only apply to people who read Sci-Fi & Fantasy.

ASoIaF and The King Killer Chronicles are the classic examples of series we may never get to know how the story ends. Ever since these series have left us high and dry, I have yet to start a series that isn't finished yet - the only other unfinished series I am currently reading is Red Rising. It's not always a writers procrastination / writers block that may be the cause of this, sometimes horrible unforseen things happen as well.

Are there any series you want to read but you're waiting for them to be finished?

For me I really want to start The Stormlight Archive by Brandon Sanderson, and the Hierarchy series by James Islington.