Why yes, Square Enix will be at PAX West, and yes, they will have more on the show floor other than Deus Ex: Mankind Divided, which released today. They will have several games available for players to get their hands on, including the greatly hyped Final Fantasy XV. Here is the complete list of available games to play on the showroom floor:

Final Fantasy XV
Dragon Quest Builders
Final Fantasy XII: The Zodiac Age
Kingdom Hearts HD 2.8 Final Chapter Prologue
World of Final Fantasy
Hitman
Rise of the Tomb Raider: 20 Year Celebration
Valentino Rossi: The Game
Deus Ex: Mankind Divided

Square Enix also has the following panels planned for PAX West.

DEVELOPING RISE OF THE TOMB RAIDER: 20 YEAR CELEBRATION Friday 1:30-2:30 Wyvern Theater
Join members of the Rise of the Tomb Raider: 20 Year Celebration development team as they chat about the latest title and the features that celebrate 20 years of Lara Croft®. Culminating with Lara?s landmark achievement of 20 years of an icon in gaming and pop-culture, Rise of the Tomb Raider: 20 Year Celebration releases later this year with nostalgic throwbacks like Croft Manor, classic outfits, and complex puzzles only those worthy of the Croft name can solve. Watch a sneak peak of the all-new PlayStation VR capabilities to explore Croft Manor, and have a look at Co-Op Endurance, a new mode where players can team up to survive the wilderness and gather relics and artifacts.
Panelists: Greg Miller (Moderator), Noah Hughes, Franchise Creat...