Admittedly, I'm unaware if a similar thread has been posted before, but... I read somewhere, someone was speculating that if there will be an Uncanny Avengers, why not an Avenging X-Men team?
Just as X-Men are now involved in taking down global Avengers threats (like Red Skull), perhaps a X-Men team will be formed that has Avengers to tackle mutant-related threats.
This is of course purely speculation and not a spoiler in any way.
Now then... WHO WOULD YOU LIKE TO SEE IN "AVENGING X-MEN"?