I recently upgraded to the ps4 version of ffxiv and been fighting for 4 hours to get the patchs to download and it just dawned on me.
Why not have an add-on for ffxiv on psn that encompasses all the patchs out. This would skip download time and it would just check to see that all the patchs are there.
Of course you would need to slightly mod the ps4 version to accept the patchs as well as it would be a free add-on.