Update | Moto Z4 launches on Verizon, Snapdragon 675, 4GB of RAM and all
Update: No 855, but there is a 5G Moto Mod. Verizon has just released this phone, which, as it states, is available from $10 per month for 24 months. The new Moto Z-line phone does indeed run Android Pie, however, and has a 3600mAh battery (presumably this can be built on with different Mods).
It is equipped with 15-watt TurboPower, with the option of wireless charging (accessible through - you guessed it - another Mod). The Z4 does indeed have only 1 rear camera, although it is indeed 48MP. Finally, it has 128GB of internal storage - and a headphone jack.
Motorola may keep the Z phone trend going for another year. According to some recent leaks, the Lenovo-owned OEM will release a device called the Moto Z4 sometime soon. Some of these rumors anticipate that it will be a flagship running the latest Snapdragon 855 processor. However, others suggest that it will be a mid-range device running a processor rather farther down the Qualcomm marketing chain - in which case it could be the Z4 Play.
The latest leak concerning the Moto Z4 appears to lend more weight to the latter. However, its release may still be interesting, as it appears this chipset will be a new one on the market when it lands. Should a new Geekbench 4 listing prove correct, it is the SM6150, a possible alternate code for the Snapdragon 675.
This specification is included among others such as Android 9.0 (Pie) and 4GB of RAM on this benchmark entry for a device called the "motorola moto z4". Its scores are not a million miles away from a pre-existing result for the Snapdragon SM6150 itself. Therefore, this 'Moto Z4' may have a CPU called something like the Snapdragon 680 or 685 at its release.