Wiill it be playable for mac sometime in the future?

Not unless you play it through parallels I would think.

I know it used to be playable until mac changed to Pentium Processors. Back in the "G" series you could play H2.

Yeah, you can use Parallels or other virtual machine solution. You might also try Wine (you don't need to use Windows then), for instance through a front-end called . However, it might be necessary to use [url=https://github.com/lnxbil/WineskinEngines]a special Wine version, otherwise the screen would flicker, and to install DirectPlay (through Winetricks) if you want to play on-line.