allofeos:

Final Fantasy XV Collaboration Release: September 25

• Terra Wars (Terra Battle series) collaboration will feature a plot, as well as Sara from the Terra Battle series as a companion for Noctis. Video.
• Shadow of the Tomb Raider collaboration will feature Lara Croft outfits, as well as music for the Regalia. Unknown if the main party will get outfits, or if this will simply be limited to Comrades and/or Avatara. 
• DJ Nobunaga collaboration features a t-shirt in-game for Comrades and/or Avatara. Video of Tomb Raider & DJ Nobunaga collaboration.

Please note: the collaborations were shown and depicted with the Windows Edition, whether or not this is for all systems as of the current time remains unknown.

Awaiting official press release statement and/or a response from PR currently via FFXV Reddit (Megathread).

Comrades Standalone Delay & DLC Addressed

• Comrades standalone, and the update expected for the current time has been stated to be delayed. However, no release date for it or further information has been provided.
• They did issue an apology and asked the community to please be patient until they are ready to release further information.