I don't have many points to consider, that's the root of my comment. The only point I can think of is that a project is a result of its people. And Redis people are now Valkey. Thus, for me, the word Redis is a deprecated word that in past meant what is now named Valkey.
As I understand it, linux has dependencies on Redis. Since redis licence change, that can't work so linux needs an alternative.
Linux foundation made a fork of redis named valkey, which was instantly backed by most of the Core maintainers, and many large companies (AWS, GCP, Oracle, Snap).
So it seems obvious that this fork which will be part of linux dependencies, has backing of big corps and core maintainers isn't going anywhere and is likely the 'new redis'.