A snippet to whet your appetite:
To start, Collections is a special new interface that will show you well, things you collected! Stuff you got from the Cartel Market (Packs and not in packs) and Special Promotions, things you still need, how much percent you’ve completed, and even let you preview these items. You will even be able to track certain items.
So yes, you essentially have a portable checklist–but that’s not all. Let’s say you wanted to have an army of characters with the Revan Mask, but were only able to get one. Well, with Collections, one is all you need. For a fee in Cartel Coins (depending on the item), you can unlock this item account-wide. Yes, ACCOUNT-wide. Not faction-wide, not server-wide, ACCOUNT.
Thank you Pink Lightsabers. THANK YOU.