A300-980? Reviving the A300 platform is about as likely as me growing a third arm. And the -980 suffix doesn't follow any Airbus logic what so ever.
You might be talking about a possible development of the A330-800neo into a freighter, to the benefit of DHL, FedEx and the rest of the integrators. And there might very well have been overtures made in that direction. It is worth noticing, however, that not a single integrator has bought the present day offering -the A330-200F. Not one. DHL is currently in the proces of bringing on line converted A330-300s, of which they've bought less than 10.
What the market seem to want, is something a bit smaller than the A330 for short/medium sectors, and something rather big and long legged for the long-haul jobs. Hence the rather healthy revival of the 767F and continued success of the 777F. I can understand why Airbus would like to muscle in on that piece of the pie, but, the combined A330, 767 and 777 freighter orders over the last 5-10 years is but a small fraction of total widebody orders in the same time frame.
All together, hardly what I'd call a bourgeoning market.