I want to know about the multi-warehouse inventory? It was not in Magento 1, will it be in Magento 2.0? M2?

Documentation FAQ
,
1

Multi-warehouse inventory is not currently part of Magento 2.0, but we plan to add this capability to Magento Enterprise Edition in 2016.

2

The multi-node inventory (multiple warehouses) support will be added to Magento 2 Community Edition