The shake-up has been happening for a while now with more and more Red Bull compatible sports being added each game. New sports like skateboard, surfing, climbing, kite-surfing, (golf & tennis) or bastardized versions of proper sports like 3 x 3 basketball, 7 rugby and I'm sure other stuff. All things that are quick and suits the kids with limited attention span and who are not interested in the Olympics anyway.
The IOC are gambling this will improve the dropping TV numbers but I don't think it will work long term.