Mathematically there will be, in the end, 16 times more Feathercoins than Bitcoins.
But, I assume at the current time, as Bitcoin has been minting for 5 years and Feathercoin for 10 months, there will still be more Bitcoins?
However, the value is dependent on the number of holders, and as Feathercoin is trying to be a normal use coin for anybody, it may in the end have more users. It was designed with more coins to do that.
Also, from the way Bitcoin has rapidly increased in value to Fiat - to being used in (Awkwardly) thousandths, shows even Feathercoins increase in coins numbers was not enough.
However, I can see that alternate coins will deflate some of the predicted increase in Bitcoin value, as they can never be fully stamped out. But, it is difficult to maintain a secure network, so coin start ups will remain hard to achieve.
It will be interesting and informative to see the configuration the system evolves into.