About the amount of work coming on you, or more about the content ?
Both.
The amount of work doesn't scare me too much, but how to organize it does.
When I decide on the content I want to show, I also should organize it to avoid misrepresenting data.
The easy way would be:
* Scene Romance: Write and render
* Scene FemDom: Write and render
* Scene MaleDom: Write and render
But that would create a lot of duplicate content, inflating artificially the number of words and renders because there would be duplicated content.
What I want to do is something like (it's an example, not real content)
Where Part1, 2, 3, and 4 are subscenes common to all paths and then have subscenes specific for every one of the paths (with small dialogue changes in the Romance depending on if the player got blackmailed or not). This way the word/render count is real with almost no duplicates, and I can show the important information that can be used later (if any) in the common Parts.