I doubt if that many now are "orphans" ("walk-aways"). More likey the numbers of lot-stock cars are the result of PAG/smartUSA's commitment to accept some number of generic cars per month out of Hambach.
Gas prices will go up, though maybe not soon to the onerous $4+ level for regular - the cars will sell.
I don't think the situation exists right now, but with the destruction of the original smartUSA plan of solely internet ordered, custom smarts at MSRP, and due to the current economic status, I wouldn't be surprised if smartUSA eventually cuts the dealers free to deal with their lot-stock as they see fit.