Just my opinion, but I would think Scott would make that model again, regardless of "new electronic features". Those of us in 3RS would rather see some different articulated such as:
N&W Class Z 2-6-6-2
GN 2-8-8-0
UP 2-8-8-0
B&O 2-8-8-0
SP AC-9 2-8-8-4 after conversion to oil fired with the former C&O "Simple Simon" tenders.
D&RGW 2-8-8-2 or 4-6-6-4
These are just a quick few that come to mind and which have been requested at shows and comments on the OGR Forum over the last many years.