The Batsuit

[Azrael]

Well, a Jim Lee inspired Batman would have very short ears...

This is what I found most surprising about these arts. It says Jim Lee, and the ears were Kelley Jones.

[Silver Nemesis]

The Kelley Jones Batman must have 12ft high archways in the Batcave to be able to manoeuvre with those ears. But on the flip side, he must get excellent reception from the antennae.

[Azrael]

The Kelley Jones Batman must have 12ft high archways in the Batcave to be able to manoeuvre with those ears. But on the flip side, he must get excellent reception from the antennae.

...but entering low corridors or vents in the Arkham games would be impossible!

[Silver Nemesis]

That's a point. Maybe he could have retractable ears that sink into his cowl when he's crawling through vents. Then when he needs to frighten someone – snikt! – they pop back up again.

[Azrael]

This sounds more like Dark Claw, lol.