There's a new post on Mr. Trolldan's blog. In this, he wraps up the MoA tour, recommends a YA series to read, and [EEEEEEEEEEEEEP] answers questions.
The reason I am writing this post is because of this:
"The one thing I can promise regarding The House of Hades ***SPOILER ALERT**** At the end of Mark of Athena, Nico senses that Percy and Annabeth are still alive, despite the incredible danger they are in. Nico is right. They are alive. You WILL find out what is happening to them in the next book. They don't disappear from the story. **** END SPOILER ALERT*****"OH MY FLIPPING PERSEUS JACKSON. THEY'RE ALIVE. DO YOU HAVE ANY IDEA HOW AMAZING THIS IS? All the fangirls (and fandudes), stop slowly dying, CUZ PERCABETH IS OFFICIALLY STILL ALIVE (for now).