To be fair, they gave art updates to the units that got them on the JP version. Soma, Elaine (actual greaves and not the weird sock greaves!), Spica (hard to say whether I like angry tsun Spica or flushed dere Spica more) and Lynn (prefer her art from before) got their basic arts changed. Dorca as well but its only Dorca :P
In addition Spica, Lynn and Phyllis got updates to their 'bedroom scenes' as well.