strange why no one did it already for litecoin, which is probably the first idea which comes to mind. the second is DOGE, for sure
Litecoin and Peercoin communities - and developers - have done so little for their coins, I would not be surprised to see them both out of top 10 coin marketcap in near future.
imo, litecoin will stay, but i agree with peercoin.. namecoin's going down too i think.