Perhaps there is a possibility that there will not be an Aiko 4 as such - but a Victoria 4.2 with Aiko Morphs.

Which in my mind would be a very functional alternative to having two individual figures....

The supreme irony of life is that hardly anyone gets out of it alive.
Robert A. Heinlein

11th Gen Intel(R) Core(TM) i9-11900K @ 3.50GHz   3.50 GHz
64.0 GB (63.9 GB usable)
Geforce RTX 3060 12 GB
Windows 11 Pro