CS2007 Upgrade

I am a current CS2004 user.
I held off upgrading to CS2006, but intend to upgrade to CS2007 when it
comes out.
Anyone know if the upgrade costs will be similar to the current ones, $395
to upgrade from the current version, and $695 to upgrade from the previous
version?
Or am I not going to be able to upgrade - and will have to pay the new
price?
(I did send an email to Carlson - but haven't heard back yet).
I wonder if I should just upgrade now to CS2006 - just to play it safe.
I held off upgrading to CS2006, but intend to upgrade to CS2007 when it
comes out.
Anyone know if the upgrade costs will be similar to the current ones, $395
to upgrade from the current version, and $695 to upgrade from the previous
version?
Or am I not going to be able to upgrade - and will have to pay the new
price?
(I did send an email to Carlson - but haven't heard back yet).
I wonder if I should just upgrade now to CS2006 - just to play it safe.