I would presume that history would repeat itself and in 40-50 years time these courses are going to need reno/resto once again.
I would also note that there are some aspects of this that aren't really up to anyone, like for example, the front lips of bunkers are always going to grow over time because they regularly get a showering of sand. Trees grow, cutting lines move, not on purpose, but naturally over time. Then someone comes along and points out that things used to be different and that certain things ought to change. And then they will.