I doubt this will ever completely happen. I think Microsoft would turn windows into a full blown console with forced DRM for all games and software with perfect license tracking before sony, microsoft’s xbox division and nintendo bowed out.

The only great thing is that indies can be successful without being under a major publisher. Steam kind of has a stranglehold though for no good reason other than the fact they were the first and thus the most popular one. I still remember losing out on sharing half life cd keys with my buddies. Only one could be used at a time online but few of us were online all the time, this was still in the tail end of the dialup era.