I think it will depend on how Legacy members are granted early access. If it's via the same code that pre-orders get, Legacy gets a Cait Sith minion and Moogle Cap. If there's a special code just for early access, or if it's just based on the Legacy account flag, then we probably won't get them without pre-ordering another copy.

That aside, this bit has me wondering...

Please note that the pre-order bonus codes are different for the Playstation 3 and Windows versions.
That makes it sound like we can't pre-order the PS3 CE for physical items and PS3 usage and apply the pre-order code for the bonus items to our PC account.