[yurikaze]

The tS was offered in different years for the Japanese domestic market. There were differences between the the two runs, mostly in color scheme, and they took part of the optional GT package (wing, black wheels, Recaro seats) from the first run, and made it standard on the later run minus the big wing.

My speculation is that if it's coming back, there will be differences between the 2018 and 2020 to differentiate them. If it becomes a regular production model, it may be closer to the Australian tS or JDM STI sport, as the giant carbon wing may be too polarizing for a larger production run.
I'll be very unhappy though if it's exactly like my tS except available in red, grey, or silver, which are colors I would have chosen if they were available, haha.