I'm currently on CS6 and want to subscribe to CC enterprise, but my colleagues does not own any license.
Can I still have the special offer of $39,99 a month and add them on my team ($69,99 for them)?
The special offer for CC enterprise is eligible for :
Promotional pricing for existing CS3–CS6 and Creative Cloud for teams customers applies to up to the first two years of membership. Offer ends May 30, 2014.
You are eligible to buy only if you have any of the serial number belonging to CS3 to CS6 (retail & volume licensing). You can buy as many seats as you require.
It is not required for other users to have any CS3-CS6 product. You can assign the seat to them.