So while many fans would be perfectly content if NCIS’ writers approached storylines from the opposite direction, with Cote de Pablo’s inclusion already assumed, the truth of the matter is that any applicable storylines will need far more organic connections to Ziva David in order to convince the creative team to bring the character back into the fold.
Granted, the writers know the character well enough that they could easily construct a narrative that would be tailor-made for more Ziva, but they only want to make that happen if the situation feels more authentic.