After alot of experimenting with new expansion i ended up that jade rogue is actually kinda strong on the current meta. It is too early to say which decks will be the best around, but jade rogue will most likely have a place in tier 1 decks on KFT in my opinion. That is because it has a really good late game versus most control decks ( which we will see more i think on this expansion ) and it can also do fairly good versus aggro decks.
I managed to hit Legend without any particular problem .
Legend proof: http://imgur.com/a/VoEg0
So this is the list i have made and in my opinion it is the most viable jade rogue list atm in game because:
1) Fan of Knives is teched in and it can be VERY helpful in hard situations together withBloodmage Thalnos ( was thinking about adding a second fan but for now i cant find any card worth removing for it.
3) SI:7 Agent is very useful in early (but not only ) removal
4)Shadowcaster can improve your jade progress in many times but it can also be in use for copying Vilespine Slayer to destroy an otherwise impossible to be killed at the time, minion.It is also a 4/4 body and that is why i prefer it from Shadowstep.It's cost is 5 tho but any card copied costs just 1 no matter its starting cost so its totally worth it especially in late game.
5) N'Zoth, the Corruptor works as a perfect finisher and in many situations your opponent will be unable to do something to avoid his death.
I hope you guys enjoy the gameplay !
P.S Valeera the Hollow is MVP on late game and you will realise it by yourself if you play this card wisely !