Early Access & Account issues (PS3)

[Jacosta]

I've made this post on the other thread too but I'll post it here too anyways.
I came across this workaround. Has anyone given this a try?
I'm planning to give it a go once I get back home from work.

http://www.gamefaqs.com/boards/67805...eborn/66461086

So here's my question: If I do this and it's successful, does that mean that after the official release I can go back to my old PSN account to play or am I stuck playing on the EU account forever????