obviously I'd make a lot more changes, but just to play:
a) Shooting: out Mixed Team Trap replaced by M + W Individual Double Trap & out Mixed Team Air Rifle & Pistol events replaced by men's 50m Free Pistol and men's 25m Running Target Rifle (as it was until a few years ago)
b) Swimming: Pool: out Mixed Medley Relay, in M + W 50m Fly, Back and Breast; Open Water, in 25km M + W. I know that’s against the rules but I don’t care.
c) Cycling: Out Road Time Trial replaced by Track Individual Pursuit & out Track Omnium replaced by standalone Points Race (and Elimination Race, but this is also against the rules)
d) Karate: out M + W Kata, in the 4 missing weight classes (2 M + 2 W) in Kumite. I know that’s against the rules but I don’t care.
e) Sport Climbing: replace combined event with speed, lead and bouldering events. I know that’s against the rules but I don’t care.
f) Flatwater Canoeing: complete change of philosophy...no more races over different distance, but all races (11: M K1, K2, K4, C1, C2, C4; W K1, K2, K4, C1, C2) on a single "olympic distance" (which should be 1000m). I know that’s against the rules but I don’t care.
sorry for going completely out of the rules, but this is the bare minum of changes I'd like to see (together with complete removal of at least Artistic Swimming, Trampoline and Rhythmic Gymnastics, Dressage, Boxing -only because of corruption- and Weightlifting -only because of doping issues)...