Curtis,
To answer your question, I’d like to see:
A generic branchline/shortline 2-6-0 or 4-6-0.
SW series switchers.
Any GE switcher in the 44 ton to 70 ton range.
Wooden side-door caboose.
More rolling stock road name options reflecting Texas and the southwestern US.
Of course, the above is just an exercise in pure fantasy. As Rusty Traque states, Athearn/Horizon Hobby’s silence to your inquiry speaks loudly as to their level of interest in entering the O scale market.
It’s really too bad that there isn’t an O scale equivalent of Accurail or Westerfield Models...or the return of Intermountain to the O scale fold.
Kyle
