Crossbows as archery (trick arrows, etc) would have to be redone as a new set so that proper weapon choice and animations could work together
It isn't like fire blast where you can change the animation or AR or DP where you can move the blast emission point depending on the weapon because you have to change both the available weapon models and the animations, otherwise you would end up with an archery blast set where people could independently select the powerset which sets the weapons and then you pick your weapon, then you customize the animations.....so if I pick archery and a bow and arrow but choose the crossbow animations, it'll just look weird. likewise, selecting a crossbow but keeping standard archery animations will look wonky. maybe they could code it so that the weapon you choose locks out incorrect animations but that sounds like additional work.