There is no intention of repeating PWYW deals for any of the games. We are looking into ways of unlocking the games at later dates through our platform though.
The first will likely be developers (with multiple games) offering up past games as bonus content once we get that system working. This will allow developers to create their own bundles of games.
The 2nd way will be some kind of customer rewards system that allows frequent purchasers to unlock older games as free bonuses and upsells.
For the time being though, you only have 96 hours for any given deal!