Well...... this just isn't possible. I'd love it too, but forget the tracks, just making Premiums of those 800 Standards would be a few man-centuries!
Anyhow, along with all the previous excellent suggestions, here's my Spec II wishlist:
Spec II
[*]Massive increase of A-Spec and B-Spec events.
[*]XP system overhaul, perhaps even removed completely.
[*]Improved PP system.
[*]Improved bot A.I.
[*]Comprehensive stat tracking database, including records for each race, displayed along with lap and race times.
[*]Possible DLC in the update, including a classic track or two, a number of cars, optional wheels for Standards, and other things.
[*]The Paint Shop will now have a range of paints for sale! Imagine that.
[*]Standards to have a cockpit view (black interior) with basic dashboard.
[*]Adjustable driver views.
[*]Additional bodykits, including those for a number of Standard cars.
[*]Massive increase in Race Mod car list.
[*]A basic Livery Editor, or at least more variations in preset liveries.
[*]Improved graphics, especially shadows and particle effects.
[*]Improved damage.
[*]Improved physics, most noticeably Rally physics.
[*]Improved Dealerships, Used Car lots and upgrade options.
[*]The classic tuning adjustments from previous Gran Turismo games return, with additional features including numerous tuning saves.
[*]Save in pits in any race, and oil change between races.
[*]Event Generator, both off and online, including prizes.
[*]Massive overhaul of the online system with numerous additional features, Race Series Designer and Event Generator, leaderboards, sharing and selling system, and other goodies.
[*]Improved Photo Mode.
[*]Improved Course Maker.
[*]Drag racing and Touge.
[*]More more MORE!
DLC
[*]Opening and closing cinemas from previous Gran Turismos, and from all regions, including all the Moon Over The Castle versions.
[*]Music from all previous Gran Turismos, and from all regions.
[*]Tracks from all previous Gran Turismos offered, and will incorporate in single player offline games with included patches.
[*]New tracks to include Dubai, Brands Hatch, Spa, Hockenheim and Batthurst, as well as American courses.
[*]Tracks will be grouped in themes to provide racing in different leagues such as DTM and BTCC.
[*]Car packs such as Standard to Premium updates, Ferraris, Lamborghinis and other supercars, race cars, classics. Car packs will be large, 20 or more.
[*]DLC will either be free or affordable. I expect some freebies.