Sounds interesting! It could also be the genre of music that she may put out next! So excited for this esp. now that she's more active on Twitter than ever.
Also, I don't think this is necessarily the album title. She DID say she was revealing the title in September, not sure why she would do it a month earlier, unless something's coming soon.
"New ink, new album" just means we've entered the next phase and this ARTPOP could just symbolize the next era. It could just be a theme.