I've pretty much given up trying to spot a pattern in the Virtual Console releases. At the moment we seem to be in a high-low biorhythm where we get one game on a Friday, then three games the next. The choices themselves still seem to be largely random, occasionally throwing out some gems but still frustratingly light on the retro games that people are clamouring for.
Here's the fruits of the last fortnight.
Phantasy Star III Generations of Doom