I do have a question. I would like to know why a simple upgrade to the 365s bought during that week isn't feasible. For example, I vendored a relic right when cata came out because I didn't know that my totems were replaced by relics. When I discovered this fact it was three weeks after I vendored the item. I opened up a ticket and talked to a GM describing the situation. They were able to go back and look and restore my item even though three weeks had passed. So it's obvious that data logs are kept. I think this would be the easiest and fairest solution to the community.
Reading between the lines of what Blizzard has posted.....the problem is there isn't an easy 'one size fits all' solution that can be implemented without making one group or another upset.
Upgrade anything purchased last week to 371 and anyone who bought it during the season will feel slighted. I know I would on my main PVP toon. Why should people who honor farmed half afk in AV last weekend have better PVP gear than those who actually ran RBGs and arena?
Upgrade all 365 to 371 directly or by providing an exchange vendor and anyone who has upgraded on their own this week will feel slighted. Again, I know I would as on my main PVP toon I've already upgraded several pieces this week.
Upgrade all 365 to 371 and figure out who upgraded themselves this week and refund their honor and people will still be upset for loss of gems and chants. I know I've filled my upgrades with new gems and chants that were not free.
Upgrade all existing 365 to 371 and retain all gems and enchants. Refund honor to anyone who upgraded 365 to 371 themselves, as well as compensate them for loss of gems and enchants. Do it perfectly and do it soon and maybe, just maybe, everyone will be happy.
Do you think the last option is something they can do in a reasonable amount of time? Is it even something they will likely do? I do not.
Face it, now that several days have gone by it is more than likely nothing is going to be done. Time to move on. Either get busy playing or get busy quitting.