My friend they've got perfect replacements for him, but anyways that's not your question.
Course he'll be back, he gets banned very rarely and Watu are barely used as it is
He was only banned because Ulu got the four star they needed to make better halfs. He'll be banned rarely. Numar is a better card in most situations if you can afford him.
His Heal is powerful though, makes your opponent think he'll take the hit to use the minimum then POW you get a 50/50 on your hands...
Numar's more solid than Eddie, can be used any round but is not as effective as Eddie is round 1 + 2 simply because of the effect mentioned above.