So yeah, I expected akane to be a crippled version of her old self. She actually isn't that bad. I think she still has great synergy with Gier. Other notable arcana would be Love, Lighting, Flower, Wind.
5B may have lost it's air unblockable property but the move still hits behind her which makes it still useful as an AA. Blocked 5B can be chained into 2B, 5C, and 6C for unblockables. 2B AA is better for when they are close to the ground. 5C will move Akane forward some but it has two hits except for certain heights; this means that the first hit can be 4GC and you will whiff the second hit. 6C's first hit is air unblockable and can be jump cancelled; practice the follow up because you will either need to IAD to pick this up or just regular jump depending where the opponent gets hit.
While jB got nerfed, it's still good for air to air. Combine this with Akane's high jump height and you can just jump and press jB on your way up to stop certain approaches.
Overall, Akane is still decent and holds her own. She lost some damage due to certain nerfs, she's no longer an easy mode character but she still can handle her own.