I'm sorry that the intelligence level here is a little deficient, Gen. Empoleon. Some people don't understand that playing competitively is playing to win, and playing to win is using the best tools available, which means not using outclassed Pokes just because.
Scizor is one of those Pokemon that will continue to rise in usage until something else, possibly Gyarados, comes back in bulky builds to become anti-metagame. All together, Rotom-A gathered 66231 uses, enough to be the 15th most used Pokemon. However, it won't catch on among the average user, as Scizor has, due to low HP and the inability to choose 4 moves out of all of the possibilities. Magnezone usage, especially the Scarfed variants, will rise in order to eliminate Scizor, Metagross, and Dual-STAB Mixmence, a sure fire way to eliminate the first two.
In terms of OU as a whole, people are definitely seeing scouting moves (U-Turn, Baton Pass) as a welcome place on the team. This can be seen from the increased usage of Jolteon and continuing usage of Flygon. Eventually, this is leading us back to a bulky offense based off of ensuring good prediction with the aforementioned moves, where the metagame will remain balanced until the results of Stage 3 Suspect testing add new Pokemon to OU. Usage of Breloom has seemed to be leveling off, if not slightly decreasing, which is strange given the prevalance of Scizor and Salamence. Usage of Heatran and Zapdos must have a large affect on this.
If Shaymin-S enters the OU metagame for good, expect to see a lot more stall. I don't think that Garchomp becoming OU will affect general trends because of all the competition it gets with Kingdra, Flygon (inferior but it gets U-Turn) and Latias (in terms of acting as a bulky sweeper / check to several Pokemon).