Taken from the interview.COOK: As far as Ace is concerned, I feel inclined to stick with Ace as the name. Every script that we’re writing goes through approval with Toei, and they have requested that we stay as close to the manga, as released by VIZ, as possible. They want us to keep character names, place names, item names as they are in the manga. Ultimately, what you read in the manga will be what you hear in the anime. I have no intention of changing names. Now the edited TV version may change some things to match up with what was done in the past, but the uncut version will most certainly have the original names.
So at the very least, no more Trace, no more "Chaser", and hopefully nothing similar. I can live with "Zolo" as long as the uncut subtitles refer to him as "Zoro"