Ok sure, released at same time as the raid.

But then, make the last requirement to upgrade to highest Ilvl of that patch an item that drops from the final boss in savage of that tier.

And to the people that no doubt wil come complain on my suggestion. You DON'T need highest Ilvl if you don't do savage. Period.
There need to be more locked rewards available only to people who put time and effort into obtaining it.