"The Faith" is not practiced on velvet clouds. Read Polycarp's recommendation above, and my concurrence.
If it's been done once, it can be done again.
When the Pope reverses the recently-released GIRM and mandates the reinstallation of communion rails in churches, then we'll see what happens.
I suspect JPII won't be doing that in his papacy and even Fabian Bruskewitz in Lincoln is not going to fund additional renovations wholesale to his dioceses' churches.