So people are speculating that Nijisanji EN wave 2 could be revealed this week based on the "Special Nijisanji EN Event" that each member has listed on their schedules. Wave 1 of Nijisanji EN was revealed on a Wednesday, and then debuted on the following Saturday at that exact same time. But this isn't just speculation based on the timing of past events - it's also speculation based on this odd visual seen in Pomu's schedule image:
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That strange static in the corner is being interpreted as a reference to the three unknown figures hidden in the background of LazuLight's first promotional artwork:
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As a bit of a recap, some have speculated that these are simply alternate outfits for wave 1, but when Nijisanji announced auditions for the next wave of EN, it was discovered that one of the images teasing the designs people would be auditioning for has "3rd wave audition" literally in its file name, making it much more likely that these three unknown designs are actually wave 2. That image can still be viewed
here (it's the one labeling the designs as A,B,C,D, just open it in a new tab if you want to see the filename for yourself).
Also, note how the event is being referred to as a Nijisanji EN event. If it was something smaller happening involving all three girls it would likely be referred to as a LazuLight event, as they have done in the past with similar celebrations, like the 100k stream and one month anniversary collabs.
There doesn't seem to be anything as interesting as whatever this weird static thing is going on in either Finana's or Elira's schedule images.