Sequels are a fact of life in the wonderful world of video games. If a game does well, you make another one like it. No brainer. If people liked a thing, then they'll like more of that thing, and this time round, that thing's previously risky, untested title will come dripping with the high-value promise of A Thing People Previously Liked. Iterative design refinement and safe recognition are the twin pillars this industry is build on, goddamnit.