The trailer shows a dozen CGI stunts completely outside the realm of even being a remote possibility. Ruins the whole thing for me, and I LOVE the Die Hard series.
In fact, the majority of the CGI stuff in action movies these days ruins it for me. Action movies have sunk to the level of trying to "one up" each other with absurd CGI stunts, each one exceeding the last in stupidity. Outrageous CGI stunts have replaced scripts, plots, and everything else actually worth watching in movies. The last bond with Brosnan in it was a prime example. It's ruined the whole genre for me. I hate it. But it saves me from spending stupid amounts of money going to see movies at the theater.