Axel has several unreleased cards, that's why he still can be released as unlockable character, there are enough cards relevant to him that can be used as drop and level up reward.
Yep I feel like he needs to be in duel links because the arclight brothers are not complete without him.Also since the other 2 are in it than he should have been unlock able in the beginning with the other 2.
Anoymous
