Can you explain a bit more what you mean by static levels? Are you referring to enemy level scaling?
From what I've read, it seems the level scaling in FO4 will be pretty much the same as Skyrim's system (and FO3's), which seemed to work rather well for the most part, although the overall balance was a bit more enjoyable after installing mods that increase enemy spawns.
In Skyrim there are encounter zones set to a minimum and maximum level range.
For example, if the player enters a level 15-25 dungeon at level 5, he will have a tough time, as the NPC encounters will be balanced for a level 15 player. If the player is in between level 15-25, enemies are scaled to the player's level. If the player is above 25, the enemies still only scale up to 25, so it will be relatively easy.
Applies to exterior areas as well, so for example you will find higher level enemies on the tops of mountains (like the annoying frost trolls who kept killing me on my way to High Hrothgar).
This is not a flat type of scaling, so some of the enemy types are harder than other types, especially the bosses. Certain unique NPCs are set to very high static level. Other, very challenging enemies scale very high up to player level + "X" for example.