InfoPath Forms Services in SharePoint Server 2013 is the last release of InfoPath Forms Services. will be supported until April 2023.
The InfoPath Forms Services technology within Office 365 will be maintained and it will function until further notice. It's been said that Office 365 users will have until at least the next major release of office (2015) , plus some
Until we have more detailed technology roadmap and guidance to share with you, we encourage you to continue using InfoPath tools
FoSL = Forms on SharePoint Lists is coming soon. it will allow you to edit
SharePoint LIsts directly in your web browser (rather than opening up InfoPath)
they demo it in that session Here is a envisioned (work in progress) technical road map on replacing InfoPath: