Sounds alright, hoping the mumblings about the game having separate worlds like Portrait of Ruin isn't true. Really didn't like that approach, felt the huge castle from the other offerings was a better fit for the game.

I don't mind the separate worlds, just so long as they don't start repeating worlds like they did in PoR.  20's a pretty big number (they had what--4 in PoR?), so it should have some good variety.

I don't quite get what a "Glyph" is.

I would guess that the "Glyph" system is just a rebranding of the Dawn of Sorrow/Portrait of Ruin magic system. Don't be mistaken--the magic systems were the same in both games, but different spells were just collected and used by different characters in Portrait.

I gotta be honest, here. I didn't really care for Portrait. I liked the idea of traveling to different worlds outside of the castle, but I couldn't stand the repeated environments and the forced grinding to level-up Jonathan's weaponry. I really like the Aria/Dawn of Sorrow gameplay, but grinding for spells should be eliminated. That part is just never fun.

Gamespy has a preview that explains more. A glyph is basically an item you equip with a mana cost associated with its use, you can have one glyph per hand. They can be things like weapons (swords and daggers were used as examples) or spells.

They're in addition to your normal weapon, right?

Dunno, could be that they block the same equipment slot or that normal weapons aren't even available. There's not much information.