I have list the order the planets and expansions was meant to be played when released.
Planet Bonus serie
Since Upgrade 4.1 the planets bonus series is all playable first at level 60. But for the storyline I have noted them in their original place, with the note "(old path)". If you are level 60 you can play them in the right place. But otherwise you have to wait until they are unlocked.Remember that to see the bonus series you need to show "Exploration mission" on the map.
Flashpoints and Operations
Flashpoints and operation that are a part of the story is also listed.Operation always demand that you are in a group but there are Flashpoints that have solo mode.I have noted "no solo mode" to the Flashpoints in the list that have no solo mode.
Dread Master
I have marked the Dread Master Story Arc with (1)Revan
I have marked the Revan story arc with (2)Maybe the Revanites story line on Dromund Kaas (imperial) should count as the beginning of this arc.