Thanks for the encouragement.
When it started putting out new growths the old diseased leaves started falling out a lot faster. Since I posted the first message in this thread, four of the old leaves have yellowed and fallen off all on their own. I'm a little hesitant in forcing it along faster in fear of damaging the plant and potentially opening it up to more infection, but at the rate it's going, most of the diseased growth should be gone withing the month anyway.
If the new growths mature without any further signs of disease, then any old growth left will definitely be coming out.
Tyler