Unreleased iPod Touch 5 With Chamfered Edges and 30-Pin Dock Connector Shared Online
The original iPod touch 5 that Apple released in October 2012 had a unibody anodized aluminum chassis with rounded edges, and was available in several colors, including slate.
Another interesting detail on the prototype, which lacks an Apple logo on the back, is the presence of a 30-pin dock connector, suggesting it was designed before Apple formally adopted Lightning.
The prototype also has the headphone jack bottom-right, whereas on the iPod touch 5 it was located on the left. Apple discontinued the iPod touch 5 in 2015.
We haven't heard of any rumors suggesting Apple has an upgraded iPod touch in the works. The current seventh-generation iPod touch was the result of a refresh in May 2019, and is currently the only product in Apple's iPod product line, following the discontinuation of the iPod nano and iPod shuffle in 2017.