User blog comment:Agentpman1/About The Original Mixels/@comment-4700340-20150714213011/@comment-25071687-20150714230041

Right, this is the exact thing for toy-based shows. Happens with Transformers, happens with My Little Pony, happens with Mixels. It's all about showing the new characters off. Sure, they can use the old characters, but they won't be the "focus". It's exactly like how M3 just had blips of the S1-3 characters, to acknowledge they still exist, but to keep the focus on the characters that are being advertised.