Good question, I write about ethereum plasma & Tenx in detail read it link below: The next part of your question about OMG it will NOT go-up $ 100 usd, maximum chances of increase $ 15 to $ 20 at the end of November or Mid of December 2017. But yet in 2018 may be OmiseGo will reach to $ 100.

https://steemit.com/cryptocurrency/@cryptoreviews/time-to-invest-in-ethereum-price-will-soon-up-to-usd-500-plasma-and-tenx