I'm a Docker Captain and Swarm consultant. Yes, lots of proof here's just a few things from a similar post last week https://news.ycombinator.com/item?id=16771118
> But it’s equally important for us to note that Swarm orchestration is not going away. Swarm forms an integral cluster management component of the Docker EE platform; in addition, Swarm will operate side-by-side with Kubernetes in a Docker EE cluster, allowing customers to select, based on their needs, the most suitable orchestration tool at application deployment time.