While they do show that the single player Campaign is interesting and has some really nice aesthetics, EA really pushed forward in presenting the Multiplayer.
Taking a page out of the SOE game MAG, Battlefeild 1 is going to boast a massive 64 player battle system, coupled with dynamic weather, full on destructible environments that will be more natural to really change up the way these multiplayer battles are experienced. One of the cooler things shown was behemoth vehicles, which you can control; like Armored Trails, Air Ships (zeppelins), and Battleships.
One of the claims is that no battle will ever be the same because of the way weather and environment can change, which is quite the grand claim. We will find out this summer when early access for insiders starts, and players start getting their hands on this experience.
At the end of the trailer we see what looks to be a battle in Saudi Arabia, where some people are trying to fight a tank on horse back, ultimately getting blown to high hell.
Side notes, Kanye West music needs to stop, motor bikes with machineguns look fun as hell, and under enthusiastic Jamie Fox and Zac Efron are going to be the first people to play on stream, old School weapons look like they are implemented in a really cool way.