Immortal Iron Fist is literally one of my favourite comic book series ever. This has me pretty hyped.
Visually I'm actually pretty ok with the actor. is his hair goofy? Well yeah, but it could be far worse. Special effects for the fists looks good, and the fact they're not going to ignore Kun Lun is useful. The action will make or break the show. The whole "living weapon" spiel shows that they're going to properly set up the conflict Danny has between his two lives.
My hopes for the story are-
No Davos the steel serpent just yet. To fully appreciate his character you need to know the backstory of Danny's dad.
Orson Randal is introduced is some way. GUN-FU! Alternately having Danny realise "Immortal Iron Fist" relates to the title, and not him they meeting Randall.
Have Danny be a relative rookie at using his actual powers just like the comics. Sure he can punch stuff and is a kung fu master, but after meeting Orson (and receiving his Chi in the most badass way possible) and finding the book of the iron fists he learns how to heal himself, channel energy into objects, hypnotise people and potentially the more cerebral powers.
Finally, make it fun! Have Danny not fully understand New York and have no idea wtf to do when he gets told he owns a company.