Yep, I've seen that, and I think it might end up being true for the Impreza, but I think it's super-unlikely for the North America-market Crosstrek. Making the 2.5-liter engine available in the 2021 has seen such an overwhelmingly positive response, that there's no realistic way Subaru can go backwards now. At most, the 1.5 would only be in a base-level model to allow them to advertise a low entry price point. The focus will be on more adequately powered trims.
The subcompact crossover market has really been exploding lately, to the point where its breaking up into smaller market sub-segments. The Crosstrek is definitely in the upper end of that range, competing more with vehicles like the Mazda CX-30, where even the base model has 186 HP, and there will soon be a 250-HP turbo available. Anyone who thinks the Crosstrek is in the same econo segment as the HR-V, say, really needs to go try driving an HR-V sometime.
I would love to be proven wrong. However, think about it this way: 150hp, despite screams from journalists and north american afficionados, has proven to be perfectly adequate for the Crosstrek and the Impreza. Sales figures over the past years corroborate it. Keeping that horsepower (for base trims) while improving fuel economy will be a major sales argument for both cars while feeding CAFE requirements; moreover if the new platform is , say, 100 kg lighter, performance will improve. The disappearance of a MT (which IMHO will happpen) will drop productions cost, improve fuel economy and make Eyesight standart across all trims. More ammo for a succesful marketing strategy.
Now, I agree that after giving us a larger engine, they will
not take a higher powered option back. However the engine can change - It'll remain to be seen if it will be the FB25, or the CB18 found in the Levorg/JDM Forester Sport - and on which trims it will be present. If Subaru wants to phase out FB engines, focusing on a smaller turborcharged line-up (again.. less engines, lower costs, better fuel economy ), the CB18 will be a blessing.
Longer term, and a tongue-in-cheek comment: if the Crosstrek ends up with two FI powerplants, this forum will turn into a crossover NASIOC. Newbies wanting to raise boost without even knowing what it means, endless questions on where to put the pssssssssssht BOV, whining about blown rings, "Stage 4" Crosstreks, and a dying grumpy breed of N/A manual transmission owners.
