This would be nice, but I won't hold my breath too much: Valve is invested in current technologies like DX11 and DX12 emulation, whereas it'd be nice to see better emulation of D3D8/9 and DDraw if possible.
https://github.com/disks86/VK9
https://github.com/CnCNet/cnc-ddraw
https://github.com/CnCNet/ts-ddraw
Use case https://www.reddit.com/r/linux_gaming/comments/97l5bk/cc_tib...
I remember that music! Good old days :)
https://steamcommunity.com/games/221410/announcements/detail...
I could not play Oblivion on Windows10 but worked on Wine for me.