So as I understand it, fixed damage spells are weird in synergies because they aren't benefiting from A) a bigger emphasis on WDPS and B) Higher DPS weapons. This makes them scale poorly into synergies end game content, where mobs have tons of health and armor, yada yada, yes?
The goal is to make sure classes with a large portion of spells that rely on fixed damage aren't left in the dust as more content (harder content) and better weapons are released?
Fixed damage spells suffer in Synergies end-game because the monsters are more difficult (i.e. more HP, damage, abilities) than vanilla. WDPS skills don't suffer as much because Synergies introduces various end-game weapons as well. WDPS would scale into Synergies end-game because of those weapons.
In addition, fixed damage spells scale based on level. Synergies end-game starts when you are lv100. (i.e. your fixed damage spells are fixed) Therefore, they stop scaling completely.
The vanilla classes are completely untouched (as of current), and thus some fixed damage spells suffer from these problems.
I) A hidden passive that buffs static damage attached to weapon item level. The higher the item level of the equipped weapon, the bigger the boost from the hidden passive. No WDPS component, but now fixed spells scale with better weapons. (assuming that each tier of weapons is going to have a higher item level than the previous tier)
II) Tie fixed damage value scaling to Level and Fame instead of just Level? (Did synergies increase the fame cap? Or is that vanilla?) May not be doable depending on how fixed damage scaling is implemented in the game.
I) Personally, I don't agree with this idea. The point of fixed damage spells is to have them be completely separate from the weapon. In a sense, the weapon for builds relying on fixed damage spells is just a plain stat stick. (sort of like the off hand weapon for WDPS-skill based builds)
Fixed damage spells benefit from weapons differently than WDPS spells. WDPS rely on weapon damage a lot, whereas fixed damage spells care about certain affixes (+FOC, +% DMG, +Cast Speed etc.). (Note that there is some correlation between item level and weapon DPS.) It's an appreciable difference between the two types of spells, and removing that kind of difference would reduce the content of the game rather than add to it.
II) Fixed damage spells already scale with level. Scaling to level + fame is not vastly different from scaling to level. May as well simply raise the current maximum values instead of having Salan doing all that extra work. (Synergies has a higher fame cap than vanilla, yes)