Are there plans to reintroduce file sharing in future firmware updates?

[admon]

Yes, it will be part of Firmware 4.6 but mostly as WebDAV, not Samba/SMB

GL.iNet GL-E750 Mudi V2 SD Card

We were discussing how to provide features for file sharing. Its hardware is too weak to install network storage. This feature may only support WebDAV and have weaker permission control. I think it will come when the E750 is upgraded to 4.6.