Just so you know, the odds of pulling emperor from the event soul are 0.04569%. For those who haven't noticed: You can check the odds by tapping the info icon in the BoS. Just to understand how insignificant these odds are, here's your chances of getting the dude from opening x souls:
So yeah, I guess nobody will pull him.x: odds
10: 4.477%
50: 20.467%
75: 29.072%
100: 36.746%
500: 89.874%
1000: 98.975%
Also @Devs: can you please remove info on obsolete souls from the BoS ? It's a pain to scroll to the bottom ><