Something to ponder when it comes to regen, it's not just the controller that needs to be compatible, your motor does as well. The direct drive hubs/motors are most often used with regen as the other types most often have a clutch that releases the motor when coasting. This to let the bike coast without the drag of the motor in play.
There's exceptions to most rules though, and this one is the GMAC system from Grin Technologies. This sytem uses a geared hub motor without the clutch, and some pretty sophisticated electronics, resulting in a very effective regen.
To answer your question, my best guess (not sure of EABS) would be no.