Apparently Best Car has reason to believe that Honda is revisiting
this Type R proposal for the final model change for the S2000. They
call it the "lightweight package" and it will follow the Type R
proposal's target of 100kg weight reduction, bringing the car from
1250kg to 1150kg, changing the power to weight ratio from 5.16kg/ps
to 4.75kg/ps. This should provide performance at turbo levels but
with the direct feel of natural aspiration.

The S2000 Type R model year 2004 proposal (official document from
Honda) consisted of:
-target of 100kg weight reduction
-balanced engine internals (Type R treatment)
-Type R exclusive interior
-air conditioning becomes a factory option
-SRS air bag becomes a factory option
-sound deadening material deleted
-front tire: 205/55R16 to 205/45R17 (implemented on AP2)
-rear tire: 225/50R16 to 245/40R17 (implemented on AP2)
-Type R exclusive suspension tuning
-Type R exclusive uprated brakes
-Type R exclusive body color(s)
-spare tire deleted
-mechanical LSD
-power soft top deleted
-lightweight carbon hard top
-audio becomes factory option

The S2000 is expected to be discontinued before March 2008, so the
lightweight package should be sold sometime between now and then.