Not going to lie, that trailer doesn't exactly look promising. I'm not fond of the remixed version of the Ghostbusters theme to begin with. The only possibly funny part from the trailer is when Leslie Jones character slaps Melissa's character and says "The power of patty compels you". (Which I only laughed the first time because I misheard her and thought she said "the power of pain"...)
But a lot of the rest was cringeworthy (like when they reveal the car before it was the ecto-1) also the new gadgets (the handguns and wrist-things) look really out of place. I'm also not really sold on the new pack design to begin with either and they already have extra attachments... Ugh. Reeks of marketing and merchandising interference.
The ghosts waver between interesting looking (like the blue ghost at the first) and terrible (the lanky pinstriped one later on).