Here's a quite exhaustive list :
Fire Emblem (Nintendo), Chocobo's Dungeon (SquareEnix), Tales Of Symphonia 2 (Namco), Fragile (Namco), Oboro Muramasa Youtouden (Vanillaware), Monster Hunter 3 (Capcom), Furai No Syren 3 (Chunsoft/Sega), Opoona (Koei), Action RPG (From Software), RPG (Konami).

ToS2 will be released Q2 2008, Fragile wille be released in 2008 (in Japan). So it's a bit early to know when these will be released in Europe.

That's why RPGs come quite late in a console's lifecycle : they take a long time to develop, they also need a good install base, and they take months to come to Europe. 

kool.... so which of these are you looking forward to then?

Well personnally, I'm waiting for Opoona (I've tried it and liked it, though I feel like I'm the only one on earth...). I'm also waiting for ToS 2, and Fragile, and I'm quite interested in Oboro Muramasa. That's it for now.

Anyone know what happened to Sword of Legendia?

The Wii is currently lacking in RPGs however Fire Emblem Radiant Dawn is a mixture of awesome, win, and Fire Emblem (redundant I know).

It's still listed on Namco's website, so it's not canceled.

is Oboro Muramasa even gettin a realease outside of japan?

Yes, it's the sequel to Odin Sphere which was released outside of Japan.

Comprehensive list of Wii RPGs that exist/will exist outside of Japan:

Fragile: Farewell Ruins of the Moon
King's Story
Oboro Muramasa Youtouden
Mysterious Dungeon: Shiren the Wanderer 3
Monster Lab
Tales of Symphonia: Knight of Ratatosk
Monster Hunter 3
Sword of Legendia
Dragon Quest Swords
Final Fantasy Crystal Chronicles: The Crystal Bearers
Opoona
Super Paper Mario
Chocobo's Mysterious Dungeon
Fire Emblem: Goddess of Dawn
Final Fantasy Crystal Chronicles: The Young King and the Promised Land
Baroque
Marvel: Ultimate Alliance
Call for Heroes: Pompolic Wars
Alien Syndrome
Legend of the River King
Puzzle Quest: Challenge of the Warlords

Add to that list Baroque and it's fine