I honestly can't wait for this game, the first two were just brilliant. I prefer the first's storyline and areas, but the second's controls and weapons. Because on of the best parts of the game was from wandering round the dark and damp corridors of Rapture, with the fear of splicers jumping out at you from every nook and cranny. This was partly lost in the sequel due to it being a bit more fast paced. Similar to Dead Space and Dead Space 2.
Here is the trailer from E3.
The setting of this is much larger than the first two games, instead of being trapped in the confined tunnels of Rapture you're in a floating city, with an completely Steampunk style approach to absolutely everything. It's like a dream come true. I can't wait for this to come out, too bad it doesnt even have a release date at the moment. I'm just waiting for the hope that it will come out early 2021