The new Apple TV is expected to released at their next event. Here is a book at what the new OS could look like.
Why would the new Apple TV potentially take away resources from iOS 9? Well According to sources, this new Apple TV model, codenamed J34, will be the first model to run a full-blown iOS core. Specifically, the new Apple TV operating system will be a TV-optimized version of iOS 9. In addition to the new hardware inside, running iOS 9 will give the new Apple TV a series of benefits over the current model.