Maybe the collectors/premium edition will be dowload only and include all future updates.
Quote from Amar's winds thread
Fifth wind says that reunion will happen in two forms, one greater than other and birdtamers will have freedom to decide which reunion they will attend. Greater reunion will ask for great sacrifice to be made in order to get all present and future treasures without new sacrifices needed, while smaller reunion will come in form already known, asking for more sacrifices if future treasures catches the eyes of the birdtamers.
The smaller reunion (i.e. standard price game) will come in form already known might mean a Bluray Disc so making a huge assumption that the greater reunion (premium game) is a different form and therefore download only.
I'm probably wrong but would love to have GT5 installed on the HDD without the need for a bluray disc.