What version of lightroom is the CC version?
I have a Nikon D3400, which needs camera RAW 9.7 and Lightroom 6.7. Will I be able to use my RAW files in the CC version, and if not do you have any idea how long it will be until I can...?
Lightroom CC 2015.7 will work.
Lightroom 6 .7 is the current release, and is the first update that supports the Nikon D3400. If you purchase and install Lightroom 6, then make sure that you update to Lightroom 6 .7. You don't need to worry about the camera raw plug-in, because Lightroom does not operate using that plug-in. All of the camera raw technology is part of the Lightroom program.
Also, take note that Lightroom 6.7 and Lightroom CC 2015.7 are the same program. But depending on whether or not purchase a standalone license or subscribe to the creative cloud will have an effect on the features that will be available to you. The creative cloud installation will have more features that have been introduced since Lightroom 6 was first released.