as we are seeing other coin such as litecoin ,monera,etherium , are faster in transaction than btc
Right now, although the other coin or can be called as altcoin also move faster, but bitcoin is still dominating the market. We can not closed the possibility in the future, but i think it will be hard to beat bitcoin even if in the future.
Obviously bitcoin is really hard to beat, yes there are many altcoins that may had a good potential but we can not say if there's one coin can replace the king.