Agreed... however I have a feeling that another alt-coin will join Bitcoin and Litecoin sometime in late 2014/early 2015. Primecoin is a possibility or perhaps the next big alt-coin hasn't launched yet.

Remember Bitcoin was launched in 2009 and became popular in 2011, Litecoin was launched in 2011 and became popular in 2013, so I think 2013 is the year for the next big alt-coin to launch and become popular in 2015 (Perhaps late 2014).

The next big alt-coin however should bring something new to the table and not be just a Bitcoin/Litecoin clone.

It is also important that name of the next big alt-coin is short (2 syllables), universal and catchy. For this reason coins like Feathercoin (too long), Chinacoin (too political), Jupitercoin (too many syllables) won't become big. Primecoin is short, catchy and has a nice ring to it.

My 2 cents.