Well, it seems like SS is combining the flying between islands with horseback riding in hyrule. So there's that.
But I think it would be interesting to have an island or two to sail to. Would add more variety to the world. But I guess for that to work Link would have to leave Hyrule somewhere during his quest. Which might make for an interesting tale…
But no trains.
Fuck Spirit Tracks. Most disappointing game ever.
yea trains suck, but can't be hard to keep them. have say a train going from hyrule caslte town to kakaroki village. you don't have to get on it. plus be fun to implement boarding train from epona, shooting enemies that are raiding a train from epona, ect. I would never ride it unless quest related or side quest related cause i hate trains, but could be neat addition to the world.
same with boats. have say TWO HUGE worlds and then many random islands. The boat is only mainly used for the travel between main islands, but those that LIKE to sail can do the other islands and what not. Or you could fly between them on bird. or like most games there is usually a teleporting device at some point