not to make waves here but VI... i made the plugin, so i can verify it does work and before i ever sold it to ANYONE, i did a live show where people logged into a server with me and i /dueled them and killed them. sure i couldn't kill a level 90 with a level 1 and repos were horrible but that comes with any ND... so... VI i ask you to not say that it doesn't exist and its a hoax if you don't know for a fact that what your saying is a fact.
now for further clarification. its not a TRUE ND... its a bug just like monkbug was... it manipulates the server's timers to get it to reset your skill timers so, its of course not as great as true ND but... eh.. still works for the most part and i can't see any reason why it wouldn't be quite useful in leveling up a few characters.
so at the question at hand. No, ND is not back but there is a plugin that codecompiler is selling that has a no delay of a certain skill. if you wish to call this "nodelay" then that is up to you.