No, he had a model. A model that is no longer produced and no longer available is the same as having no model. You can't order any prt of his model, you can order the two Dark Eldar prisoners which were included with the Dias of Destruction.
A new warmachine is by definition new. If it is the Dias or the Voidraven or somehow both in the same kit then it isn't new. If it is new then it contradicts the claim of no new units, there is no way out of that. If it is the dias or voidraven why not say so?
Any idiot can write out 'rumours' that match the pattern of new releases, that isn't hard. It's what every half arsed rumourmonger has done for years.
Edit: To put it another way, if it just does mean any new larger plastic kit then the rumour is so vague as to be almost meaningless. Virtually every army release bar niche armies like Inquisition have got a large plastic kit of some kind. If it isn't a new unit then it is so vague a rumour as to not be one at all, literally 'GW is releasing new stuff with an army update'.