I'm actually really looking forward to seeing the intro sequence. Looking back at the intro sequences for all their previous shows, it's amazing how perfectly the encapsulate the themes and tone of the shows themselves.
Daredevil - the blood reveals otherwise invisible images of the city, of justice, of faith, and finally, the Devil himself
Jessica Jones - through a haze of drunkenness and sleaze, a voyeuristic look a the secrets people hide away. But looking even deeper, foggy memories and figures peek in and out of the shadows, all to reveal this as being the perspective of Jessica herself.
Luke Cage - the heat and history of Harlem reflecting onto the body of Cage himself, until finally at the end, he shatters barriers with just his fist
Iron Fist - a meaningless, featureless figure performs weightless martial arts over a city landscape, with smears tracing behind his every movie with little to no reason or affect. Towards the end, the music picks up, and all that energy focuses and channels through the figure until finally, they unleash... just another boring kick. Not even the Iron Fist for a gigantic finish, it's literally just another boring kick.
It's actually amazing how on-the-money the intro for Iron Fist was in that it says absolutely nothing, and only comes off as grossly anti-climactic.