Well, they did just release Gen+ZH in the latest Humble Origin bundle... which you can still buy for the next 19 hours.
On the subject of updates, um, there is literally no C&C dev team at the moment; everyone got sacked when they cancelled Generals 2.
As for online play, not really EA's fault that Gamespy shut down. The community replacement servers are at http://cnc-online.net/, by the way.
Oh, and the "How to run older Command & Conquer titles on Windows 8.1" topic has a couple more steps than just the compatibility mode. But, admittedly, it is missing the fact you need to install the June 2010 DirectX 9.0c components.
I bought C&C Generals Deluxe Edition from market already.But it needs BIG update for new machines.
Also, Aspyr just release Command & Conquer: Generals Deluxe Edition in the Mac App Store.(C&C Generals Deluxe on Mac App Store)
"This award winning Deluxe version includes both C&C Generals and the stand-alone expansion Zero Hour and has been optimized for modern hardware, including Retina and 5K resolutions!"
