Personally I'm sick of Dark Force, Dark Falz, whatever, being the sole enemy within the PS universe. Those that know me from various chat rooms (usually under same as my Pen Name) know that I like variety – such as hating same villain every game (like Andross always being the bad guy in Star Fox). So I'm going to try and stay away from this tired cliché. If Dark Force does make an appearance in my storyline then it is more likely that he will be playing behind the scenes – utilizing pawns or creating events that will threaten the colonists.
But I think that the Phantasy Star series deserves better. Maybe in the Algo system the only conceivable threat is that dark mysterious power, but the unknown regions of space must have much more to offer.