Exchange 2016 OWA support for accessing archived items

Hi everyone, I have some customers moving to Exchange 2016 and are looking to upgrade EV and need the access to archived items via OWA.  I see that the EV Office Mail App still isn't supported with Exchange 2016 as of July 14, 2016 as per the latest compatibility charts.  Anyone know where I can find out when it will be supported (or at least get an estimate that I can relay to our customer)?

Any advice is appreciated!