Dying Light recently patched in a teaser video for some upcoming content that includes some very Far Cry 4-ish bows and Dune Buggies.
There's already plenty of Far Cry 4 in Dying Light with those towers and the coiled ropes hanging over climbable ledges, so someone at Techland really likes Ubi's open world shooter.
Here's a video of the new stuff which also discusses some other changes on the way:
[Techland included a teaser for Dying Light's future content in the new patch. It includes Dune Buggies and Bows and Arrows- They haven't made it public so I recorded it for everyone - Reddit]