Only if bitcoin stays in its current form. However, that likely will not be the case. At some point in the future, bitcoin will still be a very good store of value, plus it will be used for payments with upgrades such as the lightning network. Not sure where litecoin fits in that world. If you are a one trick pony, like is the case with litecoin, you better be the best and litecoin isn't anywhere near the best now that smart contracts are around.