Apple gives notice legacy Final Cut Studio apps dead in OS High Sierra
Heads up:
Apple is distributing letters to owner of Final Cut Studio that those apps will not run in High Sierra, which is to be released this fall -

More info here: About Apple Pro Apps and macOS High Sierra - Apple Support
While Final Cut Studio apps (FCP-7, Color, etc.) have been officially not supported since the introduction of FCP-X, most FCS apps (with the exception of Compressor 3.x and below) ran in some form right up to OS Sierra.
This means, if you choose to upgrade your OS to High Sierra you will either need to:
1) Give up functionality of all FCS apps
or
2) Create a dual boot computer so you can boot to an older OS to run the legacy FCS apps. This may not be viable if you upgrade hardware, as older OS's may not support any new hardware that Apple introduces, so you may not be able to dual boot to an older OS on a new machine.
or
3) Bunker a workstation with an older OS and move on to new hardware to run OS High Sierra
MtD
