"Business analyst" is a very generic term, so it depends on your context and industry. It can refer to any junior corporate staff, or in the tech world, they are the data translators bridging the gap between business and developers.

I assume you're referring to the latter. In which case, it definitely has good prospects because this role will grow in importance over time as tech develops. You'll have the network with corporate, as well as high-level technical knowledge that is in good demand. In some sense, it gives you a good starting point to develop the T-shaped skillset that is commonly talked about.