I have a vinyl record that says it has been digitally remastered - this would mean that there is no true analogue wave anymore. One reason I still have and buy vinyl albums is because they are supposed to be analogue. Is the digital wave on a remastered vinyl any better than a CD (44kHz/16bit) or would it be something closer to the studio quality digital audio?
Analogue medium do technically have a higher dynamical range than digital due to the nature of being analogue ("atom"-level wave description, although you have material limitations of the material vinyl itself, but still). If the human ear can hear the difference of a 24-bit digital version of it, or even a 16-bit version, is of course open for debate.
If the content on the vinyl has been digitally re-mastered the dynamic range of the analogue version would naturally have been capped off. The main purpose however is to remove hiss, noise, improve spatial and EQ area and such. Putting it back on vinyl you will still not be able to avoid static electricity and other "flaws" of the vinyl medium so in my opinion it is not necessary better if the original recording, provided it was all analogue, sounded good as it was.
If it has been digitally (re)mastered it will sound "better" (technically speaking as this will be a matter of opinion) on CD as the benefits of analogue (mainly dynamic range) is gone.
(Also as a side-note, the best mastering engineers uses analogue processing such as tape-saturation in their chain, but you will end up digital at the end nowadays. However, the membrane of the loudspeaker will remain analogue - nothing will change that for a while).