Dendrobium Nobile branching?

[Luckyelfie]

Obviously I’m new to Dendrobiums. I have a Nobile (For the Kids) That has finished blooming. The old canes are all now developing branches like a tree might. I thought they might be keikis but I don’t see any roots forming. The plant is doing really well with the newest cane thicker and taller then the previous years. She bloomed really well this year so I’m puzzled. In all the pictures I’ve seen of canes, I’ve never seen branches.