No idea how many do late 1800's old time but at the Train Show this past weekend, I asked the Athearn rep about them producing the Roundhouse HO line again. 2-6-0 , 4-4-0 and 2-8-0. He did mention Athearn was talking with SoundTraxx about this. No time line though.
All anyone can do is watch their page. I am on Athearn's email list and they do not send out a lot of emails. Once in a while new product announcements.
Yes, I do remember some years ago they where going to redo the Genesis 4-6-2 but that fell through.
Rich
If you ever fall over in public, pick yourself up and say “sorry it’s been a while since I inhabited a body.” And just walk away.