What a great trailer, the game looks great! The Leon section in particular looked absolutely fantastic, like RE2 on crack, but in a good way!
The new mercenary character design is a little disapointing, looking about as generic as you could get. However, the storyline behind him seems intruiging, with his blood I guess being a cure or vaccine for the T-Virus? And if he's been paired with Ashley, then even better as it would be great throwback to RE4 to have Ashley playable as a hero character now. And if that is her, I approve of her new design, as it looks like she's grown up and become a RE stalwart herself.
I also like the gameplay sequences with the new mercenary... it seemed like he was some sort of close combat specialist, performing combination sequences and attacks. Perhaps those were just QTE's like in RE4/5, but perhaps he genuinely has his own unique gameplay style in comparison to the other characters.
The new updated Leon I personally thought looked badass! One of my favourite RE characters and here he looked like someone that has been through all kinds of unimaginable horror and survived to tell the tale. His new partner also looked cool.