Could Michael now be the new Omar?

Omar worked out of the back of cars watching his future victims, just like Snoop and Chris taught Michael. "Get there early". Michael employed the same tictics when hunting Snoop. We saw him looking out from the back of a car.

Michael is now alone, just like Omar. He needs to make his living just like Omar...by himself with no support. He is in many ways smarter than Omar, but less smooth.

Michael can not go to the cops or he ends up in jail where he will get killed. He now has to survive on the streets alone.

Yes, I think Michael is turning into the next Omar. Michael tried to fall in place in Marlo's family, but he could not reconcile himself with the decisions he was being forced to make. Like Omar, he must make his own decisions without the interference of institutional power. Also like Omar, Michael is smart, empathetic, talented, patient, and honorable.

I hesitate to keep it as simple as "Michael is the new Omar, Dukie is the new Bubbles, Kenard is the new Marlo," but I do think there is a definite Michael/Omar parallel. As you mention, there's the loner aspect, and his good training at scoping out the situation to take the best advantage (his sitting in the back of the gypsy cab was too similar to Omar's stakeouts of Prop Joe's shop in Renaldo's cab last season to be a coincidence). But I'm starting to think back to the "prequel" about young Omar that has been on HBO On Demand (and Amazon online) since just prior to the season.

In it, Omar is sidekicking for his brother (No Heart Anthony) and another older boy as they rob a man waiting on a bus bench. Omar is disheartened to think that they're robbing a civilian of his last few dollars for no good reason, and he stands so strong that Anthony agrees to give the man's money back. The point of the scene (at least, before seeing season five) is to show the birth of Omar's beloved "code," but now I wonder if it was to give us a base from which to watch Michael's growth. All along the way, he questioned the logic and reasonableness of his orders, until finally, Snoop had to tell him, "You was never one of us." So now he's alone, but wily enough to probably survive for some time in that way, just like Omar.

Also, it's worth noting that after seeing Marlo's orders to kill the guy who had been calling him a "dicksucker" around the way (orders which Michael questioned as illogical), and the fact that the orders were so over-the-top in defense of Marlo's name as to require the murders of the man's entire family, that we shouldn't have been surprised to find out that Omar's insults never reached his ears, or else he would have found a way to bring the thunder to Omar.