Either he has already or he won't. In any case, higher interest is no guarantee for producing top talents. Switzerland is much smaller than the countries you mention. I don't think there's any of comparable size with more than ten top 100 players.
It happened for Sweden which is of comparable size to Switzerland after Bjorn Borg. They had about 10 players in the top 100 in the mid 90s.
They had Edberg, Wilander, Norman, Bjorkman, Johansson, Larsson, Enqvist, Gustafsson, Jonsson, Vinciguerra, Tillstrom etc who all would have seen Borg playing as little kids.
It won't happen already if its going to, as it will take at least another 5-10 years for the kids getting into the game to reach the age where they will be making an impact at pro level.