SNK was originally planning to share Samurai Shodown's Season Pass 3 content today, but that didn't happen. SNK decided to postpone the announcement, but didn't share a reason why. You can see their full statement on the matter below.
Today’s announcement of KOF XV and SAMURAI SHODOWN’s Season Pass 3 which was originally scheduled for (Jan. 6th) 6pm PST has been postponed. We sincerely apologize to everyone who was looking forward to the announcements. We will inform our fans as soon as the new date and time has been confirmed, and appreciate your kind understanding.