John,
I think the Redan works. The Road Hole has never been practical or even desireable, i.e. playing over structures. Even the Road Hole green is probably theoretically too hard, but it is still great as a conversation piece, i.e., interesting, but you wouldn't repeat it. I never cared for the Eden, because it is really bunker left, bunker right, albeit, the staggering and variable bunker depth makes it better than most other greens with flanking bunkers.
In general, all the carry based templates fell out of favor as getting the tee shot airborne became easier. Even though they are making a comeback, it is based as much on nostalgia among golf design geeks as anything. With more stats available to players, the carry risk is reduced. Either you can carry it, or not. The Cape Hole, with a reasonably straight lake edge (like a typical Pete Dye 9 or 18th hole) works a bit in making it harder to pick a line.
But overall, the game has changed so much, those templates are still fine, but not so great they should be repeated every time without question. In other words, although it pains many who are emotionally tied to the Golden Age, basically, golf architecture largely followed the path that events suggested it should. Not all of the Rayor templates should be abolished, but then again, not all of them are so great to keep doing again, really. That just makes sense to me. Just like only the best songs of each era are still on Sirius XM, most have been discarded to the dust bin of history, I would expect only some of the great old ideas would survive and really work with all the changes to the game. Some would survive in modified form, and some should just go away.
As always, just MHO.