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I doubt they will implement it for a long time.. sadly!

If Segwit activated on Bitcoin then price will be increased by 200%

What do you think will happen to the current price of litecoin after this development?

hmm my prediction is Litecoin my hits also $100 mark. The big problem behind LTC & other alt coins (except few i.e. ETH, XRP) is that the real world uses seems to zero. So, the recent pump of all major alt coins are not permanent. Soon, they will burst. So, invest in BTC is the more good decision.

Oh this makes me worry because I wanted to invest in litecoin and dash :)

You may invest but not so much. If you invest in crypto then you may follow my system --
50% in BTC, 15% in ETH, 15% in XRP, 10% in DASH, 10% in LTC