The “plus” has indeed arrived.

The additional missions for the January events are now available in Master Duel:
-Activate a Spell/Trap Card in Festival 20 times (200 gems)
-Normal or Special Summon a monster in Festival 30 times (200 gems)
-Duel in Festival 20 times (200 gems)

For a total of 600 gems.

As a reminder, Legend Anthology ends on January 23rd, and Fusion x Synchro Festival + ends on January 27th.