"No, Nintendo does not put recent console games on the 3DS eShop, and sadly that means we cannot either. The same goes with GBA (outside of the ambassador games) - though they're working on this and we look forward to the day it's possible. But until that day comes, we aren't actively working on porting any specific GBA or GameCube games."
In regards to Wii U having downloadable DS games planned:
"We're aware today that Nintendo has announced plans to launch DS games for the WiiU - it's an exciting time, and we'll be reviewing our DS catalogue for potential titles."
I hope so. Nintendo has taken longer with VC GBA games than they are Pokemon Bank (which was recently re-released in Japan, but not yet released in North American or European territories).