According to IGN, Nintendo is preparing the Japanese SF64 for VC in April.

Other Japanese April titles:

Famicom (NES):

  • Punch Out
  • Elevator Action
  • Ninja Ryuukenden (Ninja Gaiden)
  • Meikyuu Kumikyoku (Milon’s Secret Castle)
  • Gradius 2

Super Famicom (SNES):

  • Hercules no Eikou III
  • Final Fight
  • Kirby Bowl

Mega Drive (Genesis)

  • Rent A Hero
  • Puyo Puyo Tsu
  • Pulseman
  • Bahamut Senki

PC Engine (TurboGrafx):

  • Final Soldier
  • Narazumono Sentou Butai Bloody Wolf
  • PC Genjin 2 (Bonk’s Revenge)
  • Kaizou Choujin Shubibiman 2 (Shockman)
  • Benki Gaiden
  • PC Denjin (Air Zonk)

More info to come as this story develops.
Source