Many things my friend;
- BTC is the King, though SEGWIT is activated, transaction fees will be more than LTC
- Lightning network is prime time on LTC. That's a big thing for micro transactions. Person A to A is achievable. They are now working on person A to person Z through some party in between who has links to both A & Z. That's bit challenging so may take some time.
- LTC is also planning to implement stealth, i.e private transactions. Similar to Monero.
- Going forward LTC will have support for color coins; similar to ERC20 tokens. So ICOs could be held using LTC.
- The team is thinking on including smart contracts as well.
BTC will be the KING and have an application as Currency but LTC will be much more than that.
Source of LTC information: Charlie Lee's recent interview with Cypto Hedge on Youtube.