Gotham looks to be hitting its stride in the back half of season 1 which is coming in January. I had a lot of dislikes about the first half of the season, there were a lot of filler episodes and annoying characters that got more screen time than the compelling ones. However, Gotham began to get into a good flow eventually with some good episodes here and there and a fantastic mid-season finale. It seems from this promo that the show will continue to improve.
Dropping Gordon into Arkham Asylum and making him deal with the criminally insane maniacs of Gotham city, sounds like a fantastic idea. Especially when you consider the idea that Gordon directly contributed to the incarceration of many of these people. The prison riot at the end of this trailer in which Gordon must fight with future Batman villains hand to hand looks insane. This is very promising.