Every time a character gets buffed they were good all along. It was the same with pre-patch Kitana and Shinnok. Where were these people when this character was supposedly already good? Bandwagoning's fun huh?
Mileena's a great character but she's honest. If you get beaten by Mileena you got outplayed, and that's more than you can say for the current top-tiers. People talking about nerfing her already, like what the? Every buffed character = top 5 on Test Your Knee-Jerk Reactions. Wasn't Ninjutsu Scorp supposedly ridiculous in week 1? I'd like to see how each MU plays out before assigning a knee-jerk tier position to a character.
Could she be top 5? Possibly, once we see more in-depth how she now fares against the rest of the cast instead of on an online-beta which doesn't have a training-mode for people to practice dealing with each character's new buffs, a way to learn MUs you didn't feel the need to learn or even a way to practice applying your own buffs more effectively.
Also what happened to Cage, D'Vorah, Jax, Sub, Kang, Shinnok etc... These characters were in the top 10 discussion pre-patch and were barely touched/some were even buffed (rip Erron). Hell, Cage, Sub, Shinnok and Kang were arguably S-tier - I'm seeing an eerie lack of these 4 in people's top 5s. If anyone is a given, it's them.