Also a Harry Potter fan but I'm still not seeing it really.
WhoGuru
Edit
And wasn't Tremas already called Tremas? So that wasn't really a choice of his either, if so.
I think you're looking too deeply here. The writers obviously intended Tremas to become the Master, hence the anagram.
Ethanatos
plus they both use anagrams for names. This bit that's bolded I took to mean
ICly, Voldemort and the Master choose to use anagrams. Unless the Master influenced Tremas' parents to name him that or picked him because of his name...then ICly the master didn't use an anagram and it was coincidence (unlike the Mister Saxon one, which was IC, because he did choose it and I think he did that on purpose.
=D The writers
OOCly did, yes, use an anagram with Tremas.