While SGRA and a host of other extraneous items would be great to see in the game Bioware needs to focus its largest efforts on maintaining and expanding its core components before addressing these specialized interests.
To make it short, no. Diversity is the way to go and not down the path the presumed "majority" suggests. WoW did that with Cataclysm and tanked horribly. Like, horribly. I think they lost 2 million subs afterwards.
See me leave, if what you suggest BW should do actually happens. There is no majority, just as there are no core components in game playing. All of us are minorities in the way we play a game differently and the sum of content makes a great game, not "core components" that are tweaked to the extreme.
You know nothing about what makes games successful, apparently.