Inferno transition between cities.

I already wrote about this in the thread about single-player mode – the main advantage of SoD is its classic gameplay, which attracts new players and encourages veterans to return periodically. If you start making changes to the gameplay, new-SoD will end up in the territory of gameplay mods (WT, HoTa), where it will immediately lose its main advantage. The concept of "fixing only bugs" is quite successful for HD; there is no need to tamper with it without good reason.