It wouldn't be a shame, the team should be the same and that's it, it's perfect the way it is, it would be ridiculous to change it.
The only thing I could agree on is the addition of emma , but if they animate the modified morrison arc of course and kill jean , then emma would come in as scott 's love interest .
I also wish that instead of jubilee we had Psylocke or Kitty.
But the rest of the cast of protagonists is not touched, it is sacred.