Natsume Teases Announcement of 'Celebration' Game

What could it be?

While some publishers or developers like to tease with vague images or high-production trailers, others do it the old-fashioned way — with hints to puzzle our gaming minds. Natsume, publisher of recent titles such as Harvest Moon 3D: The Tale of Two Towns and Gabrielle's Ghostly Groove, along with a significant number of titles on Nintendo systems, used the weekend to release six hints of a new game set to be announced this week.

Hint #1: The announcement contains a "celebration".
Hint #2: The announcement will relate to a series...
Hint #3: The announcement will relate to a series...in which there are at least 3 previous entries...
Hint #4: The announcement will relate to a series...in which there are at least 3 previous entries...that Natsume published in North America.
Hint #5: C____m_______ __ K___
Hint #6: C_s__m_z____n i_ Ki__

Our thoughts drift towards a new entry in the Harvest Moon or River King series for a North American release, but it's a fairly tough set of hints. There's also no guarantee that this is a title destined for a Nintendo system — Natsume has published on Sony platforms — but the big N has had a lot of love from the company. What do you think it could be?

[via twitter.com, facebook.com]