Is there something called a 'corporate license'. A friend of mine was offered a "corporate license" through an online market place, but I have never heard of it and I think it's some kind of hoax/scam ?
Sounds like a scam. There is a volume license, not a "corporate license", and it can only be sold through an Adobe Reseller. It is not cheaper for a single user to purchase a volume license, compared to a retail license, so I doubt if this offer is a legitimate one. You can always ask the seller to prove they are an Adobe Reseller.
do adobe have any intention of providing us with network licenses in the foreseeable future?
this is a majot constraint on us purchasing more licenses. Lots of our users need to use adobe software but they only need to use it about once a week. Purchasing standalone licenses for all of these users is very expensive and inefficient. A network license would provide just what we need and we are likely to increase our license quota