"Join FINAL FANTASY XIV Producer/Director Naoki Yoshida as he takes the stage to discuss details on the first expansion - Heavensward. Also, Yoshida has a habit of announcing things he shouldn't, so you won't want to miss this! (We'll keep the PR team distracted so they won't interfere.)"
Later in the day, a second panel will feature Square Enix personnel, this time "Behind the Game Designs of Final Fantasy XV." The two lead game designers of the upcoming flagship title will discuss the process of designing the latest game in the core Final Fantasy series; again, from the official PAX site:
"Join two of FINAL FANTASY XV's lead game designers, Wan Hazmer and Prasert Prasertvithyakarn, as they share their experiences working on one of the most anticipated games of all time. Hazmer and Prasertvithyakarn are attending PAX EAST from SQUARE ENIX's Tokyo Studios where they work in tandem to bring FINAL FANTASY XV to life. Fans will also be in for a treat with additional information revealed on the upcoming title, FINAL FANTASY TYPE-0 HD!"
Of particular interest to readers here, by the way: yours truly will be in attendance that day, and I plan to visit both these panels as well as the Square Enix booth, where I plan to collect both photos and experiences around Squenix games (to share with you) and hopefully swag (which I won't). If you have requests of things to look for, or just want to see a bit of the show floor, let me know.
Source: PAX East Schedule