I have much sympathy for what is said here, but IMHO the problem is that from the very inception of GT for the PS3 was the title was always planned as a Two tier game, or effectively two seperate games in one.
It initially started out after the end of GT4, with the knwoledge that a descent stab at a full fledged GT for PS3 would take a significant number of years to develop, among many factors was the not insignificant time it would take to model such a substantial product.
Sony And PD were looking to release a GT title early in the PS3 lifecycle and a strategy was developed to produce a title called GTHD
Polyphony began working on this strategy from day one.
The game would be split into two completely seperate parts:
GTHD Classic
This Part of the game would use assets from previous GT'S that would be tweaked for HD output.
GTHD Premium
This Part of the Game would use assets built completely from scratch to show the full potential of what the PS3 was capable of.
GTHD was meant to offer a taster for what would be GT5 and also give gamers a chance to play an enhanced version of GT4 on PS3 making use of HD technology.
The concept for GTHD that was put to the press was that GTHD Classic would feature approx 770 cars and 50 tracks, of which some 400+ cars would be available to the user out of the box and the rest would be available as purchaseable download content.
The GTHD Premium Part would feature only approximately 70 newly modeled cars and a limited number of new tracks (i cannot remember now the number mentioned at the time)
PD had worked on this concept considerably as a goal to releasing its first PS3 GT title.
However, The Idea was universally panned and criticised when it went public for its use of micro transactions, and that was pretty much the last we heard of GTHD.
A rethink was obviously taken and a decision made to delay the next GT until such time as a title with enough content to reflect a full GT title could be built.
PD have set about this over the past few years, working on rebuilding game engines, developing many new aspects of the game, along with the extensive modelling required to build the new Premium cars and tracks, in order to deliver a completely fresh product which would apperar to be of a similar scale as GT3.
The developement period has been substantial and in order to satisfy GT fans/ PS3 owners and also probably Sony, PD released GT5 Prolugue to Provide a Taster.
Its been indicated from day one of the first GT for PS3 development That KY and his team had planned to use the reworked assets of GT4 for part of the next GT and they obviously spent a great deal of time on them for HD.
IMO from everything we have seen and heard over the years at the conferences in press interviews and from sources such as AMAR212 👍 This has always been the strategy, it something that has never gone away, its just that since Prologue5 its not been highlighted as much, leading many to foget it or believe it had gone.
As i see it GT5 will definately be in two parts integrated in one package.
probably something not to disimilar to the Orginal HD Idea.
GT5 Premium
200+ Premium cars with full interior modelling and dashboard view, full working lights with high and low beams, Premium damage and 20+ Premium quality tracks with 70 plus layouts, day and night transitions and possibly weather transitions
GT5 Standard
800+ Standard cars with no viewable interior and no modelled dashboard view, textured headlights with low beams only (ala previous GT's), Standard Damage, Many Previous GT Tracks (standard) but enhanced/remodeled for HD, fixed day and fixed night tracks ala previous GT's, fixed wet Tracks also.
I believe each part will be available under one Game front and will feature in most if not all of the games other features.
I also believe the new physics and AI engines will be shared by both parts of the game.
As a note, i believe GT5 has been ready as a viable product for shipment for sometime, however the build up for 3D by Sony really isnt going to get going full pace until later this year, And belive PD and Kaz have taken the extra time afforded them by this release strategy to tweak refine and continue to add to the product.
I for one will certainley enjoy Both parts of the game if this turns out to be the outline of the final product, as after years of anticipation for GT4 and as a enthusiastic follower of the GT franchise from GT1, i was sorely dissapointed with GT4 as it just never felt right in the physics with my G25 wheel, and in the end I could never really feel the worth in investing substantial time with it.
In the Meantime I have Graduated to PC sims, invested in a Fanatec Wheel and had an enjoyable dabble in Forza 2 and 3 and others, but now i will hopefully get to enjoy not only the impressive delights of GT5 Premium but also to relive much of what i missed with GT4 in a much enhanced model