Will you be, at some point, offering other locomotives in different wheel arrangements?

Specifically, I am look in for some or the articulateds 2-8-8-2, 4-8-8-2 (Southern Pacific's Cab Forwards)? The Cab forwards would be awesome.

Also, what about some of Pennsylvania's duplexes 4-4+4-4?

If you offer 4-6-4 (Hudsons) at some point, may I make a request?  Have 1 version streamlines, and one non-streamlined?