I have an Empire Builder set that I got back in 1998 that I bought as a 'meaning to start a layout with'

Well almost 10 years later I'm finally starting some work.   Of course DCC is now prominent and I've decided to wire the layout using Digitrax instead of the old methods.

Are these engines capable of being updated with a decoder?   i can't find anything anywhere about it.   Was curious if it was possible.