Paradox Interactive's latest financial report suggests that Stellaris, Battletech, Cities: Skylines, Hearts of Iron IV, and Europa Universalis IV have brought in considerable revenue for the company, and that the financial numbers are consistently high for these projects in particular.
The current CEO of Paradox, Frederik Wester, and his soon-to-be successor, Ebba Ljungerud, have commented on the fact that this interval's revenue numbers are the highest they've ever been for Paradox. Namely, it was the releases of Battletech, Stellaris: Distant Stars, and Parklife expansion for Skylines that have driven the numbers as high as they are.
Regardless, margins have been lower than they were last year, due to the fact that aforementioned best-sellers are third-party titles, and due to Paradox having to cancel two unannounced projects that weren't going anywhere at all. According to Wester and Ljungerud, this is all business as usual.
Paradox are also very proud of the community of players that's been steadily growing around their titles, and have seen great value in holding their annual convention, the PDXCon. There, Paradox have announced two upcoming releases: Age of Wonders: Planetfall, and Imperator: Rome, which are both coming in 2019.
All in all, Paradox Interactive are now sitting in a good spot, and seem to be looking forward to what the future holds.