You guys have a site for bitcoin and dodge coin i would love to see you make a vertcoin site vtc is going to blow up next couple of years 
I think there is no other altcoin except them, and if they wanna add other coin they will be litecoin/dash/waves, not vtc.Only wetsuit/myfe can answer, but I think there is no chance that they will add another coin. Their dogecoin faucet is operating with a loss (according to a message on their site), but they keep it running because they like the dogecoin concept.