Hello Community,
I think that a good mixture of RPG-Elements (including a good story) are equal important as some kind of sandbox elements in future games. The past has already shown that the most future games will have sandbox elements in it because without them a game would run out of content and things to do too fast.
Examples therefore: Everquest Next, Archage, Black Desert, Planet Explorers, Project Zomboid and many others.
Developer already realized that sandbox elements are an improvement to most games genres, especially for rpgs but for that very expensive in their development.
Good games know what elements are important for their games and what not.
A game without any artificial kind of borders, the possibility to chop trees, harvest materials and be able to build something with it (not only some kind of armor or clothing) are giving the player some kind of freedom to build a very own home. Also in large scale battles sandbox elements can come quite usefull because you could create wooden spiked walls and some kind of moat.
The really great question about all of this is the community who is interested in a game. Do you have hardcore fans who are going to play your game extensivily like Minecraft and such kind for years on the same world? Then you have to go and give them many sandbox elements because you can’t deliver that much content alone via story. Do you have much casual gamer who are just running through the story without exploring much of the world and without the intetion to build anything? Then you have to enrich more of the story elements to give them enough content so they will be busy for example at least 30 - 50 hours of gameplay.
In my opinion many developer have to ask themselves this question far to often… What kind of customers are we trying to get as our fanbase or just buying our game and then leaving them behind maybe without seeing them buying act 2 or act 3 because they haven’t got much out of the game in the first act.
I think the first good way the developers have done has been to implement the possibility to add the modding tools to the game so the community will be able to add their own content like in the “The Elder Scrolls” and Project Zomboid.