I wouldn't mind one more wave, like maybe the Diayku or Tonbo....
...but, honestly, I don't think they should add too many more.
I don't want EVERY weapon to have an Incarnon.
It has served its purpose well.
It breathed new life into a lot of the community's forgotten favorites.
Made them meta again.
Gave us usable assault rifles, bows, and melees with some new unique mechanics.
I think they should go all out on a few more classics and then close that book.
Just my opinion of course.