Infopath will be supported in SharePoint server 2016 but FOSL(Forms for SharePoint Library) seems dead
Microsoft recently updated their blog post with below update:
“As part of the update shared around the Evolution of SharePoint and the next SharePoint Server on-premises release, we are also updating the timelines for removal of InfoPath Forms Services components of SharePoint and SharePoint Online. Specifically, InfoPath Forms Services will be included in the next on-premises release of SharePoint Server 2016, as well as being fully supported in Office 365 until further notice. Customers will be able to confidently migrate to SharePoint Server 2016 knowing that their InfoPath forms will continue to work in their on-premises environments, as well as in Office 365.
The InfoPath 2013 application remains the last version to be released and will work with SharePoint Server 2016.”
For me the shocking news is not that Microsoft did extended support for Infopath 2013 but still no update on FOSL(Forms for SharePoint Library) in SharePoint 2016 and Office 365. When check the Office 365 Roadmap(http://roadmap.office.com/en-us), FOSL(Forms for SharePoint Library) is a cancelled features which means feature will not be released.
Reference. ” http://blogs.office.com/2014/01/31/update-on-infopath-and-sharepoint-forms/