Adding SegWit is not mandatory, it is additional feature not necessary upgrade needed for Litecoin to evolve. Let say it now: Bitcoin needs SegWit. Litecoin would be fine without it.
This. There was never an issue so this whole segwit situation is really irrelevant. I mean sure it shows the devs are staying in front of the issues (unlike bitcoins) but it's not fundamentally going to change anything like fees or wait times. It's all hyped and speculation and in the end the bubble will pop because really there's no real benefit to anyone.
Segwit offers more than larger blocks, it offers new technologies, that can be incorporated into the coin. So it's not about higher fees, faster transactions at all, at least not with LTC. Read up on what SegWit will bring to Litecoin and you will see what I am talking about.