According to a recent post by Games Inside Japan, Sonic Advance 3 is coming to Wii U this month in Japan, or May 27th to be exact.
Sonic Advance 3 was the last of a pretty solid Sonic series that took off on Nintendo’s 32-bit handheld, the Gameboy Advance. 3 in particular received well rounded reviews including an 8.4 from Gamespot due to its tag teaming mechanics.
Sadly there’s no word a US/EU release.