Samsung has been teasing its new 1.96-inch 4K LCD, but its next-gen 3.5-inch OLED sounds much more appealing because it's closer than the super-small 1.96-inch LCDs.
The new 3.5-inch display comes in at 858 PPI, and has been "optimized for VR devices, 120Hz for wearable and tablet OLED products are displayed for smooth picture quality". Samsung is making the new 120Hz display with an OLED panel and HDR support, with Samsung also touting low power consumption on the 3.5-inch OLED.
The wording here could indicate that these new panels are not 120Hz for VR, as Samsung says: "3.5-inch size, 858ppi optimized for VR devices, 120Hz for wearable and tablet OLED products are displayed for smooth picture quality". It is a translation, so we could expect VR at a different refresh rate - but I really doubt that. The next jump for VR from 90Hz will be 120Hz, at least.