Per the release, "Following the historic Crown Jewel event in Riyadh, WWE (NYSE: WWE) and the Saudi General Entertainment Authority (GEA) have expanded their live event partnership through 2027 to include a second annual large-scale event. WWE and GEA also continue to work towards the completion of a media agreement in the MENA region.
This long-term partnership demonstrates WWE and GEA’s commitment to bring sports entertainment to the region and supports Saudi Arabia’s Vision 2030."
The phrasing of "second annual large-scale event" is somewhat ambiguous, since WWE already runs two PPV-level events there a year, and have done so since 2018: two in Jeddah (Greatest Royal Rumble in 2018, Super ShowDown this year) and two in Riyadh (Crown Jewel both years).
It's possible that the phrasing indicates another event on the scale of the Jeddah shows, which were held in the much larger King Abdullah International Stadium (which holds over 62,000 seats).