Take away the hopes and dreams of all the backers, and you have just a normal company with CIG. At the end of the day, they are in the business of making money. When it comes down to that, I can't imagine anything that would make them more money than a cap ship gun boat. The Polaris made them almost 5 million dollars. Granted, it was the first "Capital" ship that wasn't neutered, but it definitely proved a point.
Honestly, I'm surprised it took them this long to take another bite out of that multi-million dollar apple. If I were to wager a guess, I would think it will either be a straight up frigate or carrier. CIG loves their military ships. With that in mind, they have their destroyer (the Javelin). They also have the Idris and Polaris that float in between carrier and frigate. What they don't have, is the plain jane frigate. They don't have a capital sized ship that is dedicated to destruction (that isn't neutered out of the gate like the Javelin).
So my hope, and my wallet, is expecting a large scale multi-crew gunboat that is capable of owning a particular portion of space. It could always be another starter ship that was misplaced, but that is my hope.