She does appear in later X-Men animated series like:
* X-Men: Evolution (2000-2003) She appears in a few episodes as a recurring villain.
* Wolverine and the X-Men (2009-2011) Emma Frost has a significant role as a recurring character, often appearing as a teacher at Xavier's School.
It's important to note that her portrayal differs across the different series. To see her in action, you'll need to check out these later X-Men cartoons.