(Was trying to make interest check on Facebook and IndieDB, but didn't get many replies)

Hello there,
Some time ago, I've been reading some things from good old Planescape setting. Specifically, what I want to talk about is how the plane called "Limbo" described. This world is constantly changing, any material can turn into something else, even creatures can turn into something weird, and even some locations that are permanent, don't change their structure, but they constantly float in the huge void, so change their distance from each other.

I, of course, neither allowed, nor wish to use a genre written by someone else and copyrighted. However, I do think that game world that is constantly changing can bring something new to game market.

Just to give two basic examples of how I imagine it:

1) Cities are permanent from inside, but change their locations to each other. For example, first time to get from City A to City B you must go north, and next time, you have to go southwest.

2) Terrain itself changes, with -irregular- time intervals (the world is chaotic, don't forget). Mountains turn to swamps, river becomes lava and so on.

In both cases, I don't mean that terrain changes for every NEW game. I mean that terrain changes DURING gameplay, in real time.

For now, I don't want to discuss HOW to implement this, or if it is possible at all. What I want to know, if you'd want to play it, and if you think it'll be popular.

Why I am thinking about such weird thing? Well, from what I seen, the best RPGs are those, which have an "alien" world. By alien I mean as different from generic fantasy, as possible.

Like those:
Planescape, Arcanum, Arx Fatalis, Morrowind

So, what do you think?