The ESRB has given Contra 3: The Alien Wars an E10+ rating for the Wii which may indicate that the Konami classic shooter is heading to the Virtual Console soon. The only announced titles due to hit the channel on New Year's Day are Urban Champion and Baseball, so there appears to be some room left in the line-up.
Keep in mind, though, that many ESRB rated titles are currently not yet available for the service, including Gradius, Pilotwings, Kid Icarus, Punch-Out!! and Pro Wrestling. But with two Nintendo published titles already planned, I suspect we'll see a handful of third party games slip out.