Olgar,
Well for starters, I'll make sure in 4th edition, That Which Abides isn't abiding, the forsaken elves are even more forsaken, and they've fragmented into cult races ie each elf "subrace" is actual a member of specific cult devoted to an idea, a god, etc.
Charduni conquer more of Termana.
I move the land masses closer together.
Rewrite/revise the Jack of Tears history to be more in line with the idea of the "dead 9th god."
Have each of the 8 gods deal with a specific school of magic, arcane magic.
Elevate Nemorga to be the new 9th god of the patheon.
Implement Warlocks, Hexblades and Samurai (3.0 version) into the mix.
Write up a Shaman Class
Make shadow magic more powerful and thus make a core/prestige class for shadow magic.
Make my NPC self into 20th Wizard/15th Expert.
Kill off Yugman.
Fragment the Calastian Hegemony but have a prophecy that allows for its return once the "true Son of Chardun" comes back from the "Welcome embrace of his Father."
Ratmen become even bigger threat.
Hollowfaust becomes its own state.
Non-intelligent undead have no evil alignment but do detect as undead.
Howse that?