The current state of the Realm is...a bit underwhelming, to say the least. I think we all know this, so I'm going to throw a long-term suggestion out there for how it ought to look, drawing some inspiration from my experience in other games.
Specifically, I'm considering a Death Realm that consists of a large handful (a dozen would make a reasonable starting point) of 'chunks' (room-sets, walkway mazes, caverns, and perhaps even some green fields for variety's sake) that are interconnected by (bidirectional) magical portals that are spawned at random (perhaps with a few rules thrown in to keep Londris from flying off the handle when trying to get around the Citadel!). Exits from the Realm would be subject to the same random spawn system, and 'back door' entrances for Dakkruists could be included, even. (Or perhaps you could go in the out door?!)
Obviously, these portals would have duration limits, and presumably a limit on how much stuff can be pushed through them as well. Monsters would be present, of course, with types varying depending on the terrain (caves would have Grendols and Wrathrats, while Carkarasses would be more common in mazelike sections, and greenfields could be home to brand new monster types).
While this'd be quite a bit of art and code (we currently have the material for 3 chunks of DR, and one or two others could be added simply to demonstrate caverns and greenfields, but anything more would require lots of art assets), it'd have the advantage of being truly dynamic without disturbing the shared nature of the world in PS, and would also be expandable as PS grows, without the challenges involved in grafting maps together.
Thoughts? Questions? Ridicule?