After releasing the MVP it was quickly obvious that there isn't any killer features in shipit. But we still needed to release the essential functionality to start with. Since then I've been doing lots of interviews with various companies, big, medium, and small, on different evolution stages (startups, growing, normal businesses, big and corporate), and the picture is starting to shape where we can take the niche.
It's not roadmap building, and it's not an all-in-one solution for product managers, but something much smaller and that helps you actually plan your product development where roadmap is just a small part of it.
Many people confuse release plan with roadmap. Others abandon their roadmaps are doing it once because they don't understand what are these for.
I think we've managed to also identify the ideal client, i.e. our target audience, so now it should become easier with wording on the website, marketing, and sales.
Cannot not recommend enough amazing book "The mom test"