I think pretty much all alts will die eventually. There's just no real need for them currently and without merchants getting behind them they're worthless as a currency. If one was to succeed then it'll likely be one that hasn't even been created yet.
The gap is closing between Bitcoin and the rest of the pack. There are stars rising and soon dozens will capture the hearts and minds of the masses.
http://coinmarketcap.com/currencies/views/all/