I want to buy Student and Teacher CS6 license. I am aware, they are available for commercial work, but not transferable.
When CS7 comes out, after upgrading my license, will I receive full commercial, transferable license, that wont be market as "student" in any way?
I value the option to sell my license if somehow I would no longer have need for certain software (it alleviates the risk of the purchase). That would be great if it is the case, because cost of my Student license will somehow go toward cost of my commercial license.
BTW. I live in Europe, if it matters
No, because any Adobe upgrade is contingent on owning/keeping the previous version you upgraded from (having them both, they go together) — and that previous version in your case is an education edition that was purchased at a large discount and so is not transferrable...
This is the case no matter where you are in the world.