What if post-AvX X-Men was handled competently.
Uncanny Avengers wouldn't have existed. Scarlet Witch, Bishop, Frenzy, Daken and Danger would've joined Magneto, Scott, Emma and Magik in Uncanny.
Wanda and Bishop would've been given redemption arcs to pay for their sins and poor writing, Frenzy would've been a physical love interest for Scott and a great foil for Emma. Daken and Magik would've formed a great stabby friendship.
I'd add M too (for a few arcs) since she could've been the team psychic while Emma was broken and due to her relationship with Emma and similar beliefs to Scott; would've also had her compete with Frenzy and ultimately fight her just because it's something she would do for fun.