Here is another industry trend prediction for further discussion:
As games continue to expand in size and scope, the desire for great scores will continue to increase.
The lines between composers who work on films, TV and games will be even more blurred in the future.
Composers initially established in games will crossover more easily into other media. And composer know for film and tv will increasingly cross over into games
Top games are going to increasingly hire top composers from outside the game world.
More name film composers and rock/pop stars are going to be the go-to guys and gals to bring more perceived value to games.