HCCI will kill port fuel injection, just the same way FI killed carbs, and eventually TBI.
Fuel puddling in a manifold, maybe at 70 below.
The future will be very hot homogenized intake air-fuel charges. That wont happen with the injector close to the intake valve or direct into the combustion chamber.
the last gasp for ported FI is very high pressure injection.
Smokey had it right a long time ago, the physics havent changed. Atomized fuel absorbs a lot of heat, or it doesnt atomize completely. the secret is to completely atomize the fuel and allow it into the combustion chamber at the highest possible temp. Plenty of exhaust manifold heat for that.
When accomplished catalytic converters will be unnecessary.
How would that fair in -30 celcius temperatures? Some diesel here (VW's, some trucks), even with glow plugs, they are kinda hard to start.