Ah here: the ff have reached 2500+ according to this but aren't GM:
- Lela Javakhishvili
- Almira Skripchenko
- Qin Kanying
- Svetlana Matveeva
Since all the peaks are 2500-2502, I'm just gonna assume the time they got the peaks is the 1st time they got the peaks sooo...
- Lela Javakhishvili - 2500 in March 2010 at the age of 25
- Almira Skripchenko - 2501 in January 2003 at the age of 26
- Qin Kanying - 2501 in July 2000 at the age of 26
- Svetlana Matveeva - 2502 in January 2004 at the age of 34
These are all over 15 years of age and all after Judit Polgar became GM (and thus superWGM). (Also over 22 and after Susan Polgar. Also over 23 and after Maia Chiburdanidze.)
Conclusion: The superWGM list is, for now, the same as the female GM list.
Update: Ok so there are also females who obtained GM without reaching 2500+ like Peng Zhaoqin. I don't think this affects either the superWGM list or the female GM list. If anyone has any idea, then please let me know.