EVE Online : Level 4 Agents Dev Blog
Since Apocrypha, one of the ongoing efforts we've been undertaking in Content is the renovation of old missions and deadspace areas. Part of the incentive for this initiative has to do with the fact that a lot of this stuff has been sitting in the game for years and simply needs some freshening up. Just as we've renovated all of our graphics and effects in the last year or so, now we want to make improvements to content. EVE has always been, and must remain, beautiful.
As an example of the sorts of things we're working on, some legacy complexes have literally scores or even hundreds of structures in them, most serving little purpose other than to clutter up the overview; similarly, some missions have massive numbers of small, fast NPCs in them, which is a nuisance especially in level 3 missions and beyond (and of course also increases server load). So we've been sorting through old dungeons, changing out, rebuilding, and reducing the numbers of structures; tweaking NPC numbers; and so on, all with a view to making things run more smoothly.