Roku earlier today unveiled a new fall line-up including the $30 Roku Express, the company's most affordable streaming player to date. The updated hardware won't arrive until October 9 which may give Google just enough time to squeeze in a brand new version of its popular Chromecast dongle.

As you may have heard, Google is planning to host a hardware-based media event on October 4. In addition to new Pixel smartphones, we're now hearing that the search giant will unveil the Chromecast Ultra which serial leaker Evan Blass recently posted images of.

Assuming the images are legitimate (Blass is usually spot-on), we can see that the 4K-capable Chromecast Ultra will utilize the same overall form-factor as the current model. The only major visual difference appears to be the removal of the Chromecast logo in favor of a smaller "G" insignia and the inclusion of a physical button which may be a reset button or on/off switch.

The puck-shaped dongle will be priced at $69, nearly twice as much as today's HD-only streamer. It'll reportedly ship with firmware version 1.21 which recently became available to those participating in the Chromecast Preview Program. We're also hearing that Google will keep its current streamer around for those that haven't yet made the jump to 4K.

Google's October 4 event may also serve as the launching pad for Google Home, the company's answer to Amazon's Echo personal assistant, and a new Wi-Fi router.