They did help with Skyward Sword and New Leaf, wonder which team did those?
It's hard to say...it seems like a bunch of Monolith's members from all their teams were farmed out to help work on Skyward Sword.
I never really appreciated the sheer amount of work that Monolith really put into the game. They had 45 PEOPLE helping out NCL.
Here's what I have for Monolith Soft's involvement in Skyward Sword:
Planning:
Keiichi Ono, Monolith Soft Inc.
Koji Hayashi, Monolith Soft Inc.
Enemy Design:
Atsushi Domoto, Monolith Soft Inc.
Tatsuo Oshima, Monolith Soft Inc.
Masatake Kaneoka, Monolith Soft Inc.
Masafumi Naito, Monolith Soft Inc.
NPC Design:
Akinobu Yamakawa, Monolith Soft Inc.
Ayumi Takata, Monolith Soft Inc.
Taro Nakamura, Monolith Soft Inc.
Satoko Nishio, Monolith Soft Inc.
Asami Fujita, Monolith Soft Inc.
Shoko Fukuchi, Monolith Soft Inc.
Object Design:
Hiroshi Uchiyama, Monolith Soft Inc.
Tadahiro Usuda, Monolith Soft Inc.
Hiroko Kiyonari, Monolith Soft Inc.
Tetsuya Taniyama, Monolith Soft Inc.
Shuichi Murata, Monolith Soft Inc.
Field Design:
Eiji Takahashi, Monolith Soft Inc.
Masato Adachi, Monolith Soft Inc.
Takaki Koido, Monolith Soft Inc.
Takafumi Shimotamari, Monolith Soft Inc.
Kazue Hiramoto, Monolith Soft Inc.
Takafumi Hori, Monolith Soft Inc.
Sayaka Matsukawa, Monolith Soft Inc.
Takashi Mikami, Monolith Soft Inc.
Effect Design:
Kei Watanabe, Monolith Soft Inc.
Yuji Tago, Monolith Soft Inc.
Ikuko Matsumoto, Monolith Soft Inc.
Cinema Scene Animation:
Hideki Tanaka, Monolith Soft Inc., Ltd
Chizue Utazu, Monolith Soft Inc., Ltd
Hirotaka Orita, Monolith Soft Inc., Ltd
Nami Shimura, Monolith Soft Inc., Ltd
Daiki Hayashidani, Monolith Soft Inc., Ltd
Toru Honbu, Monolith Soft Inc., Ltd
3D Animation:
Seiichi Hishinuma, Monolith Soft Inc., Ltd
Kengo Inoue , Monolith Soft Inc., Ltd
Tatsunobu Imoto, Monolith Soft Inc., Ltd
Nobuhiko Okayasu, Monolith Soft Inc., Ltd
Shinji Koide, Monolith Soft Inc., Ltd
Yasuhiro Fujita, Monolith Soft Inc., Ltd
Yuji Watanabe, Monolith Soft Inc., Ltd
Supervisor:
Shingo Kawabata, Monolith Soft Inc.
Technical Support:
Norihiro Takami, Monolith Soft Inc.
Special Thanks:
Tomohiro Hagiwara - Senior Producer at Monolith Soft (Xenosaga 1, 2, 3, Honne's Team)
Yasuyuki Honne - Director at Monolith Soft (Baten Kaitos)
etc.