It's a bad idea, but it's likely. With the lack of substantial updates & questionable performance, it's possible for this to be real but whether this was the right decision is debatable.
Being familiar with the Nintendo community rhetoric of "I'm right just because it happened," BfN on Switch isn't out of the question. However, I'm worried that it'll perform poorly, given the frame rate in public Giddy Park (since the last time I've played); in terms of releasing it now when it's no longer being updated won't give it the longevity, at least until players dry it of content & fun.
This rumor has existed since day one of Founders. It's more likely than not gonna happen, maybe as a way for EA to dabble in the Switch. But unless this means more updates down the line, I can't see myself returning.