As said before Litecoin is dying because it offers 0 advantage over bitcoin. Except it is accepted at fewer places and even more risky. Don't waste your money. All of these altcoins will be dead within a year.

Only an altcoin that offers something significantly different and better than bitcoin has a chance of surviving.

MtGox will NEVER offer Litecoin exchange services. I know they already announced it, but mark my words, it is never going to happen.