Here a seneriio. What would have happend in each of the 8 different timelines afther daggerfall if they where'nt merged back into one. For a refresher here are what happend at each ending.
1.)King of worms becomes the god of worms
Hard one to call. It's possible that in that potential timeline since the Jills didn't split him, the God of Worms would be a stronger entity. He'd still be trapped within his own realm like a Daedric Prince though. The only time he'd be able to manifest on Nirn would be during a time period when the barriers are weak, such as during the Oblivion crisis.
2.)The underking gets his heart back
All that really happens there is he got to rest in peace. Correct me if I am missing anything.
3.)The player gets killed
Well....[censored] happens.
4 - 6.)daggerfall/sentinel/wayrest gains control of the totem and crush opposing factions - pretty much same thing different faction
The political landscape of the Iliac Bay would be pretty different. Although I dare so, underneath the petty differences it's all basically Breton culture, so there wouldn't be any radical world altering changes. The Orcs would probably never gain acceptance to the degree they did otherwise.
7.)Gortwog gains the totem and creates orsinium
That one's obvious. Orcs gain acceptance as a sentient race.
8.)The blades receive the totem and bring order
Another obvious one. Cyrodill gains a tighter chokehold over central Tamriel, and it becomes harder for her political enemies to conspire against her. Although it may provide more incentive and hatred against the Empire.
Here's my question:
What do you believe would have happened if Umaril had his way?
Or alternately, do you think he would have worked together with Mehrunes Dagon and Mankar Camaron since some of their goals were similar?