In general I agree with your idea of having a niche for each weapon, and agree with most of your general changes to relics. Going to add my thoughts on Apoc, since I feel I have a good understanding of DRK and how it works with Apocalypse.Apocalypse - This relic has taken the hardest fall on the route to 90, both because Dark Knight became less desirable and because Haste became much more readily available. I used to love having Apocalypses in my party when meritting at 75 because I barely ever had to cure them. I have two proposals that should completely reverse this:
* Make the 10% Haste from Catastrophe's Aftermath count as Job Ability haste instead of gear Haste (Sorry, Desperate Blows)
* Change Catastrophe's mods from 40%INT/40% AGI to 40%INT/40%STR.
I think aside from the extra haste available in equipment, the attack delay cap is also kind of burden on the haste aftermath of Catastrophe. I feel the best solution would be to make the Haste aftermath a separate category from Eq, Magic, and JA. (It would still conform to the attack delay cap though, obviously.) This allows you to use the haste aftermath to fill in the gaps based on your buffs and setup. In capped conditions without Last Resort, it would only fill in the missing 1.25% haste of JA haste needed to cap attack delay. If you don't have SV Marches or your BRD is not Gjallar and/or has +2 Hands, it can fill in magic haste. And lastly of course, if you have near capped haste in Magic/JA, you can replace equipment haste for alternate stats. Making the aftermath a separate category allows the haste effect to take on different roles without being subjected to any of the caps of each particular category.
I feel in addition to the 40%AGI->40%STR change, the base fTP on catastrophe should be raised to 3.0. I feel Catastrophe is generally a weaker WS when compared to other similar endgame WS.