Playing through my new xbones lit of small exclusive sequels i've noticed a very specific trend between the ones that are a successful sequel and the ones that arent so much. The prime examples are Halo 5 and Gears of War 4.
In Halo 5 they really want to rock the boat. Trouble is they don't do it in a way that plays to what made Halo the first console shooter to be a hit since Goldeneye. Wide sandbox areas with vehicles, multiple ways to take on any set piece conflict and a cast that had just enough banter to be likeable yet quiet enough to be the immersive power fantasy character that brings the player into the action ala Classic Master Chief, Gordon Freeman or Agent 47 to name a few. The story is a dramatic right turn after a key character was killed off to push her as a Siri competitor for smartphones and 'distance her from gaming' which bombed but now shes back as a villain which completely neuters the last games impact while not bringing anything new in return. To say nothing of the same boss like 7 times and gameplay designed to chase another games audience rather than be original and distinct. Its a sequel to a 7 strong series at the time including spin offs that seems universally agreed upon to have fun multiplayer but the worst campaign in the franchise. They took a risk and it did not work.
Then you have Gears of War 4. The original plan workshopped around was to pull a Final Fantasy and keep the gameplay and mechanics but set it in a new universe with a new world and enemy to explore and fight. Then in a fit of regressive brand zeal to try and make something to pull in the core audience after the abysmal launch year for the console they 180'd into making it a hard sequel. One that is staggeringly safe in a "It happened....again?" straight to dvd movie sequel level of sequel writing. It introduces a new generation of Gears and revamps the enemy to bring them back in a slightly different image but mechanically bar three enemy creatures made them identical in gameplay. Its still a gorgeous world of not quite european architecture left to nature and ruin after decades of war and worldwide disaster and the gameplay is excellent -along with certain story choices that actually make it more faithful to the plot points set up in 2 and completely forgotten in 3 than 3 was- and the general consensus online seems to be that it is a perfectly fine sequel to the series that seems terrified to do anything new and inventive due to a fear of driving away its core audience.
Theres plenty of games that do a bit of both and succeed. But its not often that a series does either of the above and keeps going for the long haul. Monster Hunter stays very safe, Final Fantasy today is unrecognisable compared to the first game on the NES. But those are rare examples with diehard, very successful franchises under their belts.
But if you had to pick one design ethos for the next game in your favourite series what would you rather see? ultra safe or ultra experimental?