Some key points that need establishing:
1) Sports should ONLY be included if it is clearly the pinnacle of said sport. Clearly mens football, golf, tennis and basketball are out.
2) Events need to go back to the true Olympic spirit.
Track and Field should get rid of the joke events on the track or replace them with real-life versions - eg:
Track Events: 100m should have the added spice of each competitor being chased by another competitor holding a sword and trying to run them through. 110m hurdles should be done across a row of suburban houses with the hurdles replaced by privet hedges. Get rid of 200m, it's pointless. Same goes for 400m hurdles and 800m. 1500 m's becomes a mile, the steeplechase becomes a proper race from steeple to steeple with ditches and walls to jump over. No other distance race apart from the marathon. The walking race should be done on the host cities busiest thoroughfare at peak time and you get eliminated IF you bump into a pedestrian.
Field events: Javelin has to be thrown at a moving target. Distance and accuracy are rewarded. Discus and hammer are gone, replace the shot put with either a house brick, petrol bomb or Nazi era hand grenade (handle and bomb bit). Triple jump is clearly out. High jump is fine as is, replace the bar on pole vault with an actual Jenga wall like they make horses jump at Earls Court.
Swimming: 2 disciplines:
1) Speed races that only allow styles that would be used if you were swimming away from a shark/any other apex water predator. All competition takes place in a fresh or salt water environment.
2) Non-speed races where you employ strokes used in the pool on holiday (on your back and sort of waving your arms forward) and competitors must avoid random and unexpected challenges such as their mates trying to yank their shorts down or their kids/missus suddenly grabbing you round the neck and expecting a free tow round the pool. Winner is the one who sustains constant movement for the longest over an infinite period.
I could probably think of more, but I've already wasted a lot of my life thinking about this.