George R.R. Martin has provided a final update and status report on A Dance with Dragons. He confirms that the final editing for the book is completed and all is now set for publication on 12 July as previously planned.
Martin provides some interesting information on the book. A Dance with Dragons consists of 75 chapters, including a prologue or epilogue (second only to ASoS's 82 chapters). The final manuscript count is 1,510 MS pages, compared to A Storm of Swords's 1,521 MS pages (neither counting maps, appendices or acknowledgements pages), thanks to a final editing pass.
Martin also comments on the book's POV character roster. Note that this is where things get spoilery if you haven't been following the POV count so far. Also note that the comments section may also get spoilery.
The POV roster is:
Varamyr Sixskins (prologue)
Melisandre of Asshai
One more unrevealed POV character
An unrevealed epilogue character.
Martin confirms that whilst the POV roster is large - 16 characters, plus the prologue and epilogue - almost half of the chapters in the book are dedicated to Daenerys, Jon and Tyrion, with Theon coming in a little behind them. Some characters will only have a small number of chapters, like Cersei, Jaime, Melisandre and (last we heard) Bran.
GRRM also provides unusually detailed information about the evolution of the novel before signing off by saying that work on The Winds of Winter - the sixth and (hopefully) penultimate novel in the series - has now begun.