I have heard that a system is being tested where players can swap limited and legacy skins with other players. This keeps the original amount of limited skins that were originally sold the same as players are simply swapping. Of course demand is much greater than the supply so these skins can cost 5,000 rp or something.
What is setting this project back other than I guess season 3 changes?
That said, I will find a solution to the problem in 2013, one way or another.
I will wrap up this thread at the end of 2012, but now that I've been at Riot a few months, I am better equipped to answer more questions more quickly in more places, so the flow of information should increase overall. For those of you who haven't had enough upvotes here to have your questions answered, look for an eCommerce AMA on Reddit in mid December.
And to those who have been hoping to be able to purchase RP or champs/skins as gifts for in-game friends during the holidays, your wait should be over soon...