I can tell you there is a s__tload more of Sylvan's present HO models I'd rather see in N Scale than time wasted producing an RTS bus.
I have to agree. I need vehicles, primarily commercial vehicles, to serve industries. Unless I am modeling a dense urban scene, buses aren't that important and are pretty well covered at this point, with Tomix's recent release. I'm hoping Sylvan does the 860 iterations first after the Emeryville, since it has cross-over potential from straight tractor to dump truck and other uses. Then I'd love to see the 9000 in standard and sleeper versions, along with the Cannonball.
I'd love to see some more 60s trucks too, especially a Ford N series or an IH CO series: