Well written, i completely agree with you sir. If Bioware went back to 6.0 i would be so impressed because no company is never wise enough to go back on their decisions.
The Light VS Dark faction system worked beautifully most of the time, why on earth would you remove it ?
Here's how you can improve your game Bioware.
1. Make crafting useful again and not affected by the Cartel Market, a crafting expansion should really be one of your highest priorities to make it meaningful again. Artifice for example has been rendered useless because of your crystals on the Cartel Market.
2. Undo all the changes except for the new content we will gladly wait 8 hours for it, be wise enough to know it's the right thing to do. Your old interface was beautiful and the character creation was a much better fit to the game, now it's just some ugly modernized black goo. Give us the ability to change interface colors to Sith Red, Green, Blue (default) and so on.
3. Make Legacy faster to level for new players and let it gradually slow down in order to give them a feeling of progression, the Legacy system is really one of the many reasons why the game lack new players.
4. A new expansion should introduce a new Alignment system where you can also specialize in both like Revan, this should have it's own story branches and choices like light and dark. This would bring players back to play the stories again.