I also have some ideas here, not fully sure about their feasibility. Tried to be wise as much as I can.

-Continuing USB work that vardanm started. Yes, I know a developer is working on that. Another joining student would be great and speed up things.

-Continuing TCP/IP stack work if noone is working on rewrite.

-Working on DirectX support: bringing new features, fixing bugs, optimising, if possible fixing some driver issues...

-Fixing driver unloading/fallback problem (CORE-8294) I think it's a hurdle on our hardware compatibility, but not sure its priority.

-Would some kind of Win32 subsystem work be too hard?

-Implementing some missing things in shell.

-Implementing more user mode stuff, or is it enough for now?

-Extending printing support.

-Fixing current audio support, if our devs don't want to tinker with it.

-Implementing WoW16 support. I suppose that'll draw attention.

And as said before, proper application compatibility database. :) By the way, I'm too pleased to join and see you here all! 

With my best regards,
Can Taşan