The source material almost always sets Bruce Wayne up as a crimefighter first, with the bat imagery being incorporated later, but what if Gotham first uses the symbol of a bat as a way to cause unrest in Gotham City’s underworld, and then has the still-developing Bruce bring the bat in later.
After all, they could have made Alfred’s vehicular gift to Bruce a bright yellow minvan, but they went with a tproto-Batmobile.
That would almost make sense, given how Gotham has already delivered on so many comic book elements that probably shouldn’t have been around until Batman existed in full.
It doesn’t look like there’s anything too large and specific being projected on the spotlight just yet, but wouldn’t it be interesting if Bruce and Jim immediately agree to use a bat symbol for it, as inspired by the bat-dude in Bruce’s wacky dreams?