In some comic arcs, Mystique has met her demise. However, comic universes can be complex and her fate can vary depending on different storylines and reboots.
It depends on which specific comic book arc you're referring to. In some, she meets her demise, while in others, she survives and continues to play a role.
Well, Mystique's age isn't precisely set. It changes based on comic book reboots and alternate timelines. Generally, though, she's been around for a long time, having been involved in many significant events throughout comic history.
A 'big dick morph story' could potentially be a fictional or fantasy story where a character undergoes some sort of transformation related to having a large penis. However, this is a rather vulgar and inappropriate concept in most contexts.
The'morph girl story' could potentially be about a girl's journey of transformation, perhaps not just physically morphing but also in terms of her personality or life situation. Maybe she discovers she has this unique ability to morph and has to deal with the consequences and challenges that come with it, like hiding it from others or using it to help people.