It seems that way, but it's not that easy. Starcraft competitions are still on tv in South Korea 28 years later because they got the balance just right, and all the dirty little details of that universe.

In theory you can make any sci fi show about future humans and a couple other species going to war. Should be straightforward.

But getting the balance of that universe right in terms of little details is tricky: Halo has done the heavy lifting already.