Especially as 2017 is the centennial of the Fatima apparitions. BTW, has the Vatican ever lifted Luther's 1521 excommunication? Would this be the first time the Vatican has so honored someone they still formally consider a heretic?
No, Luther is still excommunicated by the Catholic Church.
The Vatican hasn’t acted as the Catholic Church in decades though, so I wouldn’t go by what the “Vatican” says or does.
Having said that, I wouldn’t be surprised if the “Vatican” lifts his excommunication just before opening his cause for sainthood.