Until the franchise finds a creative team that can properly capture the essence of the first film, a video game might be the best option for the series.
As I recall, Casper van Dien went all in on trying to make it a franchise. Without Verhoeven’s satire of the underlying fascism of the Heinlein novel, though, there’s nothing particularly interesting about it.
The same might go for the video game. When Avalon Hill did the ST wargame, they were at least able to add some interesting SF elements and mechanics to their standard game architecture. While it’s interesting to see the ST aesthetics in a FPS, is it all that different from Halo?