Will there be a way to make monsters respawn, like you could in D2? Or... uh.. did they not respawn in D1? :)
Like I said (or rather implied), the first Diablo used a static PCG map: while generation makes the layout randomized from game to game, everything remains the same in a particular game. This is pretty typical of roguelikes in general, or at least those that follow the Hack style. On the other hand, you could also "restart" your game in the original Diablo while maintaining the same character, allowing you to beef yourself up for harder places. I doubt DiabloRL will include this, since it will likely stick to its Rogue-like roots as much as possible.
Oh man.. I finished it just by going to lvl 5. :( *sniff*
At one point the devs fixed the sound version and posted a release, which you can find
here. To my surprise, this also came with the Catacombs, which covers floors 5-8. There are still a number of unfixed bugs sitting in that version but it's got a good amount of extra content when compared to the latest public release.
I don't think the entire game will be completed for a while, yet. Pretty sure there's also plans to mesh in Hellfire content, which sounds like a cool plan to me.