I’m torn on this, in a way. I actually like the tiara and find it magnificent to behold, on the one hand. On the other, it has been so long abandoned, now, that to suddenly restore it might cause confusion amongst a generation of Catholics that has never seen it worn by a pope. Clearly, the last three popes have seen the value in Paul VI’s abandonment of, not only the tiara, but other of the old papal trappings that come, not from his role as Peter’s successor, but as a temporal monarch.
I think it has to be recognized that the sight of a thrice-crowned Bishop of Rome carried aloft on a portable throne surrounded by ostrich feathers, courtiers, and armed guards reminds one more of an Egyptian pharaoh than it does Peter. Biographers of St. Pius X tell us that he detested all of those imperial trappings and felt embarrassed by them. He probably would have applauded Paul VI’s successors for setting much of those things aside.
For those who assert that the tiara was rich in theological symbolism because of its three crowns, it has to be remembered that that symbolism is quite contrived. The tiara originally did not have three crowns; it was just a conical headdress unique to the Bishop of Rome. In time a jeweled circlet was added to the base, then another, finally a third. So if the three crowns represented something theological, what about when it only had two crowns? Or just one?
The modern popes have seen fit to abandon the tiara with good reason, I think. Times do change and expectations change with them. Pope Benedict XVI has gone so far as to eliminate the tiara from his coat of arms, replacing it with a mitre. I think we can safely assume that it has been relegated to the past, having fallen into desuetude for three pontificates, now.
If it were to be restored, however, I would say that it might be best to rethink the tiara, altogether, and reintroduce it, not as a jeweled triple crown worthy of an emperor, but as a simplified ecclesiastical headdress, akin to a mitre. I can conceive of a tiara covered in, say, white silk brocade, like a miter, but still conical in shape, and with three orphrey bandings encircling it, rather than three jeweled crowns. Were something like that to be introduced, one could have a unique papal headdress that evokes papal tradition, but according to a more ecclesiastical fashion that does not speak, in any way, of regal, temporal glory. A “post-Vatican II Era” tiara, as it were.
That might be a nice idea, actually