EXO's comebacks are during eclipses and it seems like aespa's will be based on the phases of the moon?
It looks like the clues are with Giselle whose official symbol is the moon. We just haver to look at her eyes.
Like in her SYNK video:
There's a moon in a Waxing Crescent Phase which was a hint for their November 17 debut:
Next is in the Black Mamba MV where we could see a snowflake in her eyes:
This was possibly a hint to their "Forever" release on February 5 when it was still winter in Korea. The moon at that time was in a waning crescent phase.
Now look at her eyes in the Forever MV:
It looks like a full moon and the next full moon is on May 26 but it's a lunar eclipse and EXO might comeback around this time.
That leaves us to look for other moon hints in the Forever MV:
There are two moon hints so this might mean that their comeback will happen when the moon is in a waning crescent moon phase as seen in the MV.
Looking at the calendar, the next waning moon is in June and we got this easter egg in the Black Mamba MV:
6.13
aespa is coming