There is another rumor about Sony Lavender, this time with a revealing image. The phone has been hastily cut out of a photoand it seems like the Lavender will have razor-thin bezels.
Also, the upper right corner of the device shows a camera with LED flash, very similar to the Xperia C3 and C4. It also seems to have stereo speakers on the front, but just like on the Xperia C3 those could just be decorative.
A rumor from April shows the Sony Lavender will have a 1080p screen (size unknown), a MediaTek MT6752 chipset (64-bit octa-core) and run Android 5.x Lollipop out of the box.