I did make a comment in that thread about Lauda possibly having alts, but obviously this isn't something I'm confident of and I didn't mean to make a big deal out of it. Hell, I'd love it if Lauda returned. If you say he/she won't with as much certainty as you're expressing, I'll just go ahead and take your word for it. Let's have peace all over the kingdom.
Lauda is dead - Lauda cannot have any alts, and cannot return.
Being said, I'm sure the person who posted under that name is still here under other accounts.