Im not sure it will surpass bitcoin. But it might overtake for everyday use. It depends on what the supply and demand for these things are. A tell tale sign is bitcoin has 21million total cap. And litecoin is 84mil total cap. Which theoretically should lend itself to a 4:1 ratio. But it all depends on what kind of value people place on these things. That saying with th 4:1 ratio if BTC is 3415 USD then litecoin should be at 853 USD by current evaluation. Maybe its undervalued. Who knows. :)