Interestingly enough Almost every thing mentioned on page 1 is in TOR.
Diverging story lines: Yep
More Story: By leaps and bounds
Character customization: Yep
Better ship: yep
Space combat: sorta yep
Better blasters: yep
Plot twists: Not spoiling it, but yep
More planets: Yep
Sorry, they did revisit Tat.
Wanking to Revan: not so much.
Cameos: HK does, don't know about Kreia or any of the others. Bastilla's kin is.
Reasonable explanation for having rebuilt the order: Check
non-jedi main(if you so choose): Thankfully YES
Play as a Sith: Yep.
Grey as an option: not really. you have good or bad choices. Neutral is rarely an option
"I would rather be exposed to the inconveniences attending too much liberty than to those attending too small a degree of it." Thomas Jefferson