I don't mind keeping the associations, but they could easily switch up the arcanas for the party members. What would linking with someone of the Hermit arcana, or have one that was a party member, be like? Imagine them having very little in the way of elemental attacks, but mostly focus on status effects(and attacks that have them built in), maybe even with a slight overhaul of a status effect system?
Or, at the very least, expand more on the ones there. Rise and Yukari act very differently for example, with Rise being very open to everyone and Yukari being a polar opposite. Yukiko as a Priestess is more selfish than Fuuka was, so even though she was a healer she wasn't as much of a support as that arcana was with Fuuka.
But the only difference between Yosuke and Junpei is Yosuke wasn't a jealous jerk for a bit. Then again, Yosuke's moment of growth as a person happens in like April.