I’m not sure if his warmup would be the same for each round. Since he can easily jog the 10.30 or so required to get through the heats he can afford to save some energy by doing a reduced warmup. For the final, he’s already warm from having done the semi-final a few hours before, so again his warmup may be reduced. As indicated, he (and Asafa, and probably many others) also use massage as part of their warmups, which reduces the need for actively warming up. Finally, sprinters who have been through a taper before a major championship usually find it easier to warm up than when they are not rested as well. In conclusion, I think that copying the warmup someone saw Bolt doing for one of the round at WC could easily lead to sub-optimal performance and potentially to injuries.