The Venice is kind of viewed as the successor to and step-up from the F55 and technically, the F55 is still available for purchase as new, which makes it a current model, regardless of it's age/date of introduction.
Venice is 6K and full frame, so I guess it's a step up from F65 too ... but, when you think about it, F65 was "real" 4K when Alexa was 2.8K and the majority of productions still went with Alexa. It isn't that Alexa wasn't great but that Sony managed to screw up its own flagship model's workflow, whereas Alexa was "power up and shoot".