The publisher for Demon’s Souls, Atlus does not have a European office so the game was not originally distributed in Europe. Alas a new publisher is on board to bring the game to Europe. Although Sony has offices in Europe SCEE are not publishing the game fro PAL gamers. Namco Bandai is apparently the distributor of the game and will ship the game to PAL regions.
It may seem like a missed opportunity for Sony as the game had respective sales figures in North America. No word when the game will be released in Europe though, but at this stage PAL gamers may finally see the game.