Litecoin will be here for long time but it wont be like is early days so good, it will be in top 10 coin always but he wont reach that price of 40 dollars again. High for next year in my option will be range 10-15 if this implementation with segwit comes with good end but if not then i expect that price goes in 2-3 dollars range and to stay in that field until next halving
If the litecoin does not offer more functions than the bitcoin, it will not be top 10 for long.