Recently in the CraftCMS world... Pixel & Tonic announced that Craft 3 will support multi-site setups by expanding the concept of locales into "sites."
Keeping Up With Craft CMS
Multi-Site features coming to Craft 3
Technology
Recently in the CraftCMS world... Pixel & Tonic announced that Craft 3 will support multi-site setups by expanding the concept of locales into "sites."