So, I have a CE key that I haven't redeemed yet... so I would need to do that before F2P starts on Nov. 15 in order to get the Cartel Coin bonuses?

But once the initial subscription period ends and I don't renew, I lapse back to the F2P "Limited Access" features?

EDIT: Hm, so from the FAQ, it seems like Subscribed players who don't renew get converted to "Preferred" accounts, which seems to be F2P "Limited Access" with some additional benefits:

• The ability to run faster (Sprint) starting at Level 1.
• Cargo Hold access (Bank Slots) and higher login queue priority.
• Increased access to Chat and Secure Trading.
• Post more items for sale on the in-game Galactic Trade Network.