Re: It's unlikely to improve
The reason it *is* likely to improve is because it's becoming less and less common to write games entirely from scratch, which need to be ported by hand. Instead you use a pre-made engine of some sort, which has support for multiple platforms out of the box, so the "porting" has mostly already been done for you. This makes it far more economically sensible to make games available for platforms with smaller marketshare.