A. Pseudonyms may very well come into play down the stretch since you’re working in different categories and you need to “brand” yourself. The fact that you have some kind of career that does not mesh will is another logical reason to use a pen name. However, there is plenty of time before any of these projects get published, so my advice to you is to simply relax and let your agent and editor work with you on this.
When I told my literary agent that I had a children’s picture book in my bag of projects, her first remark was that it will probably need to come out under a pen name, as she was concerned about my nonfiction “brand.”
So – yes – you’re on to something here, but you’ve got what I believe The Rejecter called “Thinking Too Far Ahead Syndrome.” Relax – deal with this as it comes up.