Looks like we have a hint at the next patch.

Forgive me, but that makes no sense.
If you only focus on SAO, then the only people drawn to Maple for this update will be those who are already SAO fans. What's SAO's gain from that?
On the other hand, if you advertise other content too, you get people to join Maple, or return to it, who just want the Blaze Wizard, or whatever else is in store. And then they will see the SAO events in the game, and maybe become drawn to the show.

Maybe as part of the terms and conditions Nexon are obligated to highlight SOA. Nexon are paying SOA for this event so surely it makes sense to highlight it before anything else.

Either way according to Artarsi the BW revamp for next patch has been in the works for awhile therefore we should see all the other stuff KMS got with the BW revamp right? If its just the BW revamp however then I guess highlighting SOA is more ideal.