Just wanted to relay my experience here.
I renewed last Friday 4/15. The ticket office rep was pretty inflexible overall. I asked about getting the two free tickets to FedEx field event of my choice, but they wouldn't budge on that as that was only given to people who renewed pretty early (late February I think). I also asked about the automatic upgrade program. They said that I pretty much needed to renew by this week in order to hold my seats for next season, that I would at least be at risk of losing them if I waited much longer. In terms of improving my seats, it sounded pretty unlikely as I will basically be at the back of the line since I renewed late.
All in all, pretty disappointing personally that I couldn't get more out of the deal somehow. But trying to be objective, ticket office came off as pretty credible.
I have a partner in these tickets who was definitely on board to renew, or else I probably would have waited quite a bit longer just to see what the "best offer" was from the ticket office. Maybe I would have lost my seats, maybe I would have been given the opportunity to come back with better seats. I'd be interested to hear from anyone who waited a long time, but ultimately renewed last year.