I don’t remember any trailer ending with Darth Maul’s second blade igniting.
I downloaded and saved all of the (US) online trailers from 1998-1999, but they’re on a hard drive at home and I won’t be able to get to them until the weekend. Will definitely check!
Obvious question: have you checked the TV spots from the DVD box set? I don’t remember if they’re the same as the “tone poem”/tv spots or if there are others.