Science News has two excellent articles on where we are at, part of a just-started ongoing series.
The first, by Tom Siegfried, follows in many of the footsteps of Douglas Hofstadter to talk about consciousness and self-referential systems. The title of "Self as Symbol" gives some hint of where he's headed. And, he says self-referentiality may actually deepen our eventual understanding of consciousness rather than acting as a barrier.
Laura Sanders looks at the neuroscience side of the coin, and what brain studies are telling us these days. Not too much of high specificity, but we're getting ideas on how to refine, and in some ways change, our searching.
Siegried, especially, complements the "mu" I have said to free will VERSUS determinism. In a self-referential loop, especially one as complex as consciousness, free will VERSUS determinism sounds way too linear.