I've been playing around with the MDE site, and for whatever reason it's holding me to 90 days out - every day I check, another open day is added at the 90-day mark from that point. I don't mind calling for the ADR, as long as the Tea Room is open!
I called WDW Dining today to make an ADR for tea, and the CM told me the Lounge is being refurbished this summer. During that time, limited hours for the Afternoon Tea will be provided at 1900 Park Fare. I have an ADR for 1:05 on 8/7. Phew!