Technically is not the "theme song" from the games, since the song is part of a separate soundtrack "inspired by the game"; but a darn great one anyway.
It was later used in movies, multi platinum, etc. But it has never been part of the games.
The team knows about how many people love the song though.
It has been teased that a possible new movie will include a new version of that song, but that aside nothing else. The upcoming soundtrack will only features songs "inspired by the characters".