Just logged in after seeing this. Didn't get a new quest via login, rerolled old quest to see if that would work and still got old quest. Still no New Year quest for me. :C
Seems I will be down and out for 2 new year quests already...
We are looking into this as we speak my friend! Seems some folks are having trouble with receiving the Lunar New Year Quests.
Update: This is likely due to a timing difference. These launched at 10am PT for all regions... meaning, if you re-rolled before this time, then you won't be granted the Lunar New Year Quests until the following day.