Errr, what? Nintendo ISN'T making Minish Cap. It's Flagship/Capcom, unless I'm mistaken. Same folks who did the Oracles games, and the LttP port + Four Swords.
Minor correction but the GBA port of ALTTP was done by Nintendo R&D2 (who also did Link's Awakening DX, Mario DX and the Mario Advance ports/remakes), they have a notable amount of SNES era EAD staff there. Capcom Studio 1 handled Four Swords GBA though (it was side project while they were working on Minish Cap).