While the HTC One (M8) has just been announced, considering the usual trend, there are rumours suggesting a Mini and max version of the flagship device.
According to sources, now that the HTC One (M8) is official, we can also expect the Mini version of the flagship, just like last year. Rumours already suggest that the device would feature a smaller 4.5 inch HD display. However the processor used would be the quad core Snapdragon 400. Also expected is a 13 MP rear facing camera and a 5 MP front facing camera. The new HTC Sense 6.0 UI with the latest Android KitKat version is expected.
The sources also claim that besides the Mini version, we could see another version called the Ace. While this is the first time the name has surfaced, we can expect it to be the larger phablet sized version of the flagship and the successor to the HTC One Max. However, as of now there is no other input to second the rumours.