Usually it would be rather fast for an album, but she already has 3 singles released before October totallying in a possible 7 songs for the album (if SEVEN DAYS WAR ends up being included), even though she just released an album in April.
Given a normal 2-3 month break between the last single and album, it's not that weird if we got an album in Dec/Jan.
Personally, though, I'd rather see another single before an album.
But even having 3 singles per year is a bit rare now for Ayu.
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"Remember, don't let others dictate your music taste. If you like whatever you're listening to, keep listening to it."