Django and Rails, like Python and Ruby, look more and more similar as time goes on. Not because they are becoming more similar, but because the web ecosystem around them has become a lot more diverse. If you want a break from Rails, learn Phoenix! Or Node, I guess.
Furthermore, with the advent of fat front-ends, the utility of both of these frameworks has gone down in absolute terms. When they first came out, front-end features like form generation and HTML templating were really important, but now they're arguably better to avoid. (That's why channels are so important to the future of Django.)
That said, I still like Django a lot and use it all the time. I don't want to discourage you from learning it. But I wouldn't do it because you're trying to make a leap from Rails.