I’m thinking along the same lines. If you hide SSG behind web interface with ability to add and edit posts, you have already done around 80% of why people use Wordpress.
Over here, most smaller clients also ask for form that send email from a website. Not sure if there’s a service that could provide it to static sites without exploding a budget (and ideally on one-off payment).
Unfortunately for Python CMSes, PHP (and thus Wordpress) offer unparalleled deployment simplicity - just copy these files to remote server and off you go. There are still gazillion hosting companies that offer space on shared server with PHP set up for a monthly price of a beer.
There’s going to be growing space for things that are simple to deploy, cheap and sufficiently locked down. SaaS like Wix and Weebly are probably going to take a solid cut of that niche.
