Yeah, you're right. sorry for misunderstanding. i tried remake in UE4 with ripped models. So i didnt updated from client librarys.
However if i can revive in UE4, this provides more advantages, cause you got an full source code and server code.
i can make modes like Bike racer, TouchDown , DeathMatch, Arena or more.
Also im reviving another mmo project named Land of Chaos Online 2 Revolution from alaplaya/danal game. you can see in steam what i did for old game. (I didnt put link, you can easily search in google)