secondary question would be is Subaru going to restore the 3 cylinder? The Justy had only 73 hp, but with turbocharging almost anything is possible. The new engine in the Nissan Rogue is 201 hp and it is a 1.5 L 3-cylinder turbocharged engine.
Actually my guess here is NO!
Here's Why 2022 Will Be Nissan's Last Year in Business Scotty gives his opinion on this new engine!
1.2 L, 3 cyl, Automatic (variable gear ratios), Regular Gasoline
FWD
1989 Subaru Justy 296 grams/mile
1990 Subaru Justy 296 grams/mile
1991 Subaru Justy 296 grams/mile
1992 Subaru Justy 296 grams/mile
1993 Subaru Justy 296 grams/mile
AWD
1990 Subaru Justy 317 grams/mile
1991 Subaru Justy 329 grams/mile
1992 Subaru Justy 329 grams/mile
1993 Subaru Justy 329 grams/mile
Impreza gen 5 for comparison
2022 Subaru Impreza 4-Door 2.0 L, 4 cyl, Automatic (AV-S7), Regular Gasoline 280 grams/mile
2022 Subaru Impreza 5-Door 2.0 L, 4 cyl, Automatic (AV-S7), Regular Gasoline 284 grams/mile
2022 Subaru Impreza Sport 4-Door 2.0 L, 4 cyl, Automatic (AV-S7), Regular Gasoline 291 grams/mile
2022 Subaru Impreza Sport 5-Door 2.0 L, 4 cyl, Automatic (AV-S7), Regular Gasoline 292 grams/mile
.
2022 Subaru Impreza 5-Door 2.0 L, 4 cyl, Manual 5-spd, Regular Gasoline 335 grams/mile
2022 Subaru Impreza 4-Door 2.0 L, 4 cyl, Manual 5-spd, Regular Gasoline 337 grams/mile
2022 Subaru Impreza Sport 5-Door 2.0 L, 4 cyl, Manual 5-spd, Regular Gasoline 351 grams/mile
Nissan Rogue for comparison
2022 Nissan Rogue AWD 1.5 L, 3 cyl, Automatic (AV-S8), Turbo, Regular Gasoline 287 grams/mile
2022 Nissan Rogue AWD SL/Platinum 1.5 L, 3 cyl, Automatic (AV-S8), Turbo, Regular Gasoline 288 grams/mile
You can see the potential. Nissan Rogue AWD with 3 cylinders has roughly the same CO2 emission rate as the Subaru Impreza with 4 cylinders, but 201 hp instead of 152 hp. But I still don't think Subaru is headed in this direction. We would have heard some rumors.