Does Cubase LE AI 6 support for upgrade?

Can I upgrade Cubase LE AI 6 to Cubase 6 or Upgrade to Cubase 7 in an future?
If I can that which upgrade method or can I buy upgrade disc for upgrade my Cubase LE AI 6? and can it run internet support for upgrade by online?

Thank you, looking forward to the news.

Here, there is an upgrade from Cubase 4 or 5 LE/AI. Doesn’t say anything about Cubase 6 LE/AI.
It seems logical that if you can upgrade from 4 or 5 LE/AI you should also be able to upgrade from 6 LE/AI.
I recommend e-mailing Steinberg.