I would welcome just about any Legacy engine. I just want to see something smaller. Lionel could do a fantastic job on a GP7/9, GP20, GP30, GP40, etc... on the diesel side. On the Steam side if they are really going to make a Legacy Berkshire I suggest that they make a painted/unlettered version as well. I'm with Karl on the 0-8-0. That would be nice.
The first company to give me a detailed scale small/medium steamer with sound and smoke will get an order for 4 from me. I'm tired of waiting...