The way I see it, Zyugoya has two options:

Either end this series and start fresh… Or continue with a sequel/new title now that Ochihai is no longer a divorcee. I feel that there's still more potential in regards to the ex-husband's personality and possible kids, but we'll just have to see.

The end is close, I have to say, this has been the most wholesome manga I've read in a very long time.
I still wonder what will happen with Ochihai's senpai at work and I still wish we could see more of Ochihai's and Sawatari's past from before they met but for now, what I want the most is an epilogue panel showing how they did lived happily ever after, maybe with a kid or two.
This has been a comfy journey and I loved every minute of it.