While I’m not a fan of having different variants for different countries, it’s whatever. There's a good news for Moto E4 with Qualcomm Snapdragon SoC. XDA developer squid2 has released Lineage OS Custom ROM for the Moto E4.
The Lineage OS 14.1 is based on Android 7.1.2 Nougat. We all know that the Moto E4 won't be getting Android Oreo officially, but you'll be able to install it via Lineage OS 15, whenever available. Until then Moto E4 users with Qualcomm Snapdragon SoC can enjoy the first port of LineageOS 14.1.