Of course there's a lot of confounding variables to take in to account but if you find your work life balance dooable and enjoyable currently, it makes sense to at least give it a go. I know it's cliche, but you don't want to wonder "what if?" when you start to hate your new job!It's always good to have a plan B, so keep one step ahead of yourself and keep options available if you find the work-life balance difficult when your new baby arrives. Congratulations by the way.