Two years ago it was “Happy 牛 Year” and now we’ve got Happy New Year 兔 You”.
As explained in the Language Log link above, 2009 was the year of the cow 牛 (niu), and – for native speakers of Mandarin – the pronunciation of 牛 (niu) is quite similar to the pronunciation of ‘new’.
This year is the year of the rabbit 兔, tu, and someone has figured out how to incoporate that into the English salutation, ‘Happy New Year to You’. Again, without getting mired in phonology, the pronunciation of 兔 is a lot like English ‘to’. Thus, Happy New Year 兔 You!