I was alerted to this a few minutes ago: Hydaelyn.org Article
Regarding FFXIV beta access being included in Japanese versions of FFXIII. Additional Source Hopefully the US versions of FFXIII will include this as well.
I don't think the US version of FFXIII will have anything relating to FFXIV. There is a strict multi-platform release agreement that prevents Sony from having anything that MS does not. If the PS3 version of FFXIII has betacodes, the English and Japanese language track or any other bonus, then it would have a market edge. People would choose the Sony version over the MS version because of that. Microsoft would call foul and their swam of lawyers would scream and yell.
This is the same reason why we have not seen a PS3 Demo here in the states, where as Japan has had a demo for a LOooooong time. Japan is not bound by that agreement because there is no XBox release there. Simultaneous release agreements mean exactly that, products that are appearing on multiple platforms must be released exactly
at the same time and "Resemble one another in entirety".
Personally, I am not really that excited for FFXIII. The English dubbing is of course Terribad, no surprise there, but with FFXIV around the corner I just don't seem that interested. I have to travel to Japan 2 times starting in January for business, I might pick up a copy then, but I am definitely not rushing to the importer for it. Which sadly is a first in terms of Final Fantasy releases.