From: http://wii.ign.com/articles/777/777545p1.html:
"April 2, 2007 - SEGA of America and Europe today jointly announced NiGHTS: Journey of Dreams for Nintendo's Wii console. The game is the official sequel to the cult hit SEGA Saturn game in which players explored dream worlds and controlled a jester with the ability to fly. Journey of Dreams seems to follow the same basic premise."
I was a big fan of NiGHTS. In fact, it was the first Sega Saturn game I ever purchased. I'm really looking forward to playing the new NiGHTS game on my Nintendo Wii.