FS2000 to FS2004 was a big jump. Imagine what kind of an improvement in graphics we could get from FSX to Flight.
FS2000 - FS2004 = four years
FSX - Flight = four years
It's just possible it could be big. They even say in the FAQ that there will be improved terrain and scenery.
You have a very valid point.
I just believe that MS would want to penetrate their hardcore fan base and such would be very hard.
Most major FSX users allready own comprehensive scenery add-ons, GEX, FTX, Megascenery etc. so I do believe what MS is talking about w.r.t improved terain they will have to do extremely well.
At the same time, MS is popular for improving at a major FPS cost.
I still believe FSX was a sim that was released way too early since FSX nowadays only perform/look as it was intended too.
MS flight will have to be super cool & super cool (Visuals) may required 2015's hardware making FSX the preferred sim for a long while still.

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