Since you're considering a diversified product line in the mid-term future, the first question to ask is how you'd ideally brand those other offerings.

Under your current brand name? Or should their identity be separate and more distinct?

Your decision depends on those future offerings. What's best for them? There is no general rule about what a company should do. Look to your other products / projects / services.

Happy to give specific recommendations if you'd like to set up a call and share specific information.