In addition to the mini version of HTC M8, the South Korean phone maker HTC is also rumoured to be working on an variant HTC M8 Ace which could be launched later this year. While we know a lot of specs of HTC One Mini, the details of HTC M8 Ace are still under the wrap, but thanks to the prominent leaker @evleaks we have at least the first render of the alleged device.
The purported image posted by @evleaks indicates that HTC M8 Ace will come with similar design as the HTC One M8, including a black bezel around the display with the HTC logo below the display. Front-facing camera and the sensors on the top right, similar to the M8, but the build seems to be different.
Apart from the leaked image, the complete specifications of device are not available, but the M8 Ace is speculated to be a mid-range smartphone with non-ultrapixel camera like the HTC One (M8). So we can expect HD display, a quad-core processor (likely from Snapdragon) and at least 1GB of RAM in the device.
It was again the @evleaks who revealed the specs of rumoured HTC M8 Mini. According to him, the HTC M8 Mini will pack latest Android 4.4 KitKat, 4.5-inch HD display, 1.4 GHz quad-core Snapdragon 400 processor, and 1GB of RAM.