Star Wars: The Old Republic is poised to go free-to-play before the end of November (dated as Northen "Fall 2012"), but in addition to a micro-transaction element, there will still be a premium subscription option. For players wondering how these options are going to differ, BioWare has now published a "Free-to-play Option Chart" detailing the features of each (via: Massively):

As a general rule, the restrictions are in threes: three Flashpoints per week, three Warzones per week, three Space Missions per week. Players will also be able to buy weekly passes for these features to get unlimited access. There will also be restrictions on inventory expansions and cargo hold storage for free players, and field revivals on death will be limited.

Further information on TOR's free-to-play implementation can be found in the game's support pages.