I've never seen one of the new Zeiss but what I will say, in the most general terms, is that I've always thought Zeiss glass to be somewhat better than Swaro.
As you already have a Swaro and are, therefore, bound to lose out on any trade, it may be worth considering exactly which part of the Swaro performance is stopping you from doing something you want to do. I honestly don't think you will shoot more deer with a Zeiss than with a Swaro as, in my view, a Swaro scope is adequate for what I would need it to do. I personally use a S&B but my experience has been that there is nothing between S&B and Swaro at last light, and adequate for the job is all I require from a scope.
If you were to keep your Swaro and put the cash saved towards some stalking trips then you could honestly say that the Swaro allows you to shoot more deer than having bought the Zeiss would. Life isn't about buying stuff but rather is about what you do while you are here so keeping your Swaro might put you ahead in that respect.
If you just have a pile of cash washing about in your pocket and you want to spend it to be seen to have "the best" then my advice would be not to buy anything before you've looked at a Nickel scope. My personal view was that it had a slight edge on Zeiss though, of course, I haven't compared Nickel to the new Zeiss range.