I created a "Feature" using the SuiteBarBranding, PromotedActions and SuiteLinks Delegate Controls in SharePoint 2013 however, it appears they are gone in SharePoint2016. Is this correct? is there another option?
You can follow below mentioned link to understand the concept of Branding in SharePoint 2016.
You can get the starter master page for SharePoint 2016 from below locaion & understand the concept from it.