Well I think that all Wbb engines both Diesel and Steam alike are all good. I am currently in the works to purchase the J Class 4-8-4 PRR Northern Steam engine and I think that it would be nice to see more streamlined engines of different road names added to the roster of steam engines. It wouldn't hurt to if they came equipped with the new True Blast Plus. I figure as long as you don't need to worry about replacing those batteries as is with the MTH Proto 2 there is nothing wrong with Bachmann updating the Williams True Blast 2 sound system. If they keep it as simple as that and not get to fancy with the electronics they should be fine. After all with all these electronic stuff in the more modern engines if something shorts out you are looking at a hefty bill of repair.