I have a number of concerns about this movie:
One, Jackie is very much getting older, meaning that he probably can't pull off the kind of stunts he used to pull off when he was younger. I'm concerned that much like other aging action movie stars (e.g. Steven Seagal, Bruce Willis) they'll use a great number of cuts to cover up the frailty of an aging Jackie Chan. The trailer, which has cuts all over the place, doesn't exactly make me feel better.
Two, this is a Western production, and as we see from other Western-produced movies with Jackie Chan in it (Around The World in Eighty Days, Shanghai Noon), Western directors and editors are pretty terrible at cutting martial arts action and are unwilling to provide the budget to allow shooting longer fight scenes, as more and more mistakes happen in longer action movie cuts and thus take more time and money.
Three, the emphasis on gunplay in the trailer concerns me, as using guns generally makes directors lazy at portraying good action scenes by allowing a massive number of cuts (with only a few exceptions, like John Wick). I hope they emphasize the kind of situational environmental duels and resourcefulness Jackie Chan movies and his characters are known for, but... Urghhhhhh, I don't know.
Four, I'm worried that this movie may end up accidentally racist by playing on people's fears of the Nondescript Dangerous Immigrant/Foreigner, much like other action movies in this genre have before (like Taken). I mean, it all depends on how sympathetically Jackie Chan's character in this movie is written, but as it is right now, I'm not optimistic.
Five, the dialogue and writing so far is completely unimpressive to the point of cliché.
...Man, I really want this movie to be good, but this really isn't encouraging. :/