While LTC might be a good alternative now, that won't last. LTC is only good since it has less adoption than BTC. Even the creator of LTC has a vision where BTC and LTC go down the same path together, so diversifying to LTC is not any longterm play.
I'm looking at coins going in another direction, like BCH for example. At least with that coin you know the vision and that's a vision I can get behind
But will it take over BTC?
I don't believe so