Yes, but that doesn't guarantee in the game staying exclusive. Look at ME1 and NG3RE. I reckon Bayonetta 2 has a multi year exclusivity on WiiU but will eventually release on other systems.

I was talking about the PSABR part and no, TW101 has no chance of coming to other consoles since it's a direct contract between Platinum Games and Nintendo where Nintendo will be the owner of the IP, is funding and publishing the project from start to finish.

I'm confident that the OP is wrong and that a game like Rayman does not prove anything and using NG3:RE is completely pointless, since it was published by Tecmo in Japan.

Wonderful 101 is financed by Nintendo, just like X from Monolithsoft, that's not going anywhere. Bayonetta 2 sounds like the same story.

That doesn't make any sense. PSASBR is not only owned by Sony but it includes many Sony characters in the game, which would never be allowed on a Nintendo console.

Bayonetta IP is owned by Sega, so they can do what they want with it. We don't know the extent of Nintendo's partership. Are you funding the game? Are they co-developing? Im sure Sega could find other publishers for the PS3/360 versions if Nintendo's role is simply advertising/publishing the Wii U version.

How many times do people have to say Bayonetta 2 wouldn't exist had Nintendo not taken it on?

nintendo is publishing them both so nope and honestly i would not be surprise if wonderful 101 does well nintendo will buy out platinum

Not saying that Bayonetta 2 going to other systems is completely impossible but the situation is different. Nintendo seems to not only be funding the game but also publishing the game in all regions. Platinum also said without Nintendo, Bayonetta 2 would never happen. They have a good relationship right now and I doubt Platinum would want to ruin that. Sega could possibly try to get the game on other systems though and are over-seeing development but I still don't think its possible.

TW101 is apparently a Nintendo franchise so...not going outside of Wii U. (or 3DS) 

NG3RE is different because Tecmo published it in Japan, Nintendo probably chose to publish it in Europe and U.S to make them look more "core" and try to get sales for the game up. It was likely always ment to be a timed-exclusive. Rayman Legends was also likely always planned to go multi-platform. 

Mass Effect is also a bit different because Microsoft only published the 360 version. EA published the Windows version so it isn't like Microsoft had exclusive publisher rights.

No chance, Bayonetta is being Funded, Produced, and published by Nintendo.

Wonderful 101 is a Nintendo IP being developed by Platinum Games, same case as The Last Story.

Not gunna happen, also Bayonetta was horrible imo :/