Personally, I think all of the titles that Tobi has been coming up with recently are just his initials over and over. In fact, I posted something about it on the Edguy forum:

I think I must be a little loopy at the moment but I just noticed that the new Edguy album title has the same initials as the latest Avantasia one:

The Scarecrow= TS
Tinnitus Sanctus= TS

And guess what else has those intials?...

Tobias Sammet= TS