While Civ BE suffered from monumental failures of balance, it introduced a wide range of new mechanics to the Civ series. While, some of these mechanics, such as floating cities, are unlikely to appear outside the context of a sci-fi spin off, others seem like they could be viable additions to a mainline civ title, and Im curious whether any of them will make an appearance in Civ VI. While Im sure there are others, these are the mechanics that occurred to me as interesting possibilities for inclusion or adaptation in Civ VI: Diplomatic Agreements: When Rising Tide was announced, I speculated that the mechanic was an interesting one that probably wouldnt work in mainline civ because it wouldnt make sense for leaders to be making such agreements in 4000 BC. On the other hand, a mid game introduction of diplomatic agreements and capital does seem like it would fit with the idea, discussed in the announcement, of increasing diplomatic options as the game progresses. This isnt to say I think its probable that diplomatic capital and agreements will make an appearance in Civ VI- it probably would have merited a more direct mention in the announcement, and if Civ V style religion and tourism are returning, it would make an awful lot of mechanics for a base game- but it is a possibility worth considering. Satellites: This is narrower mechanic, meaning that it would be less of a game changing addition, but also that it would be easier to transfer (albeit only for a small portion of the game). The mechanics behind satellites didnt make a ton of sense from a real world perspective (not all satellites are geosynchronous, and those that are dont necessarily need to be launched from the area theyll be orbiting over), but they added a lot of gameplay possibilities and in particular added new options for how to use terrain, which seems to be something Civ VI is focusing heavily on with the addition of districts (and satellites could interact with districts in a variety of ways, just as they interact with city centers). One downside of adding this mechanic would be that it was the stated reason for not including strategic mode in BE, and while Im not convinced the two have to be mutually exclusive, Id be very disappointed to make the same trade of in an addition where satellites are available only in the endgame. Covert Ops: This is perhaps the BE mechanic Id be most interested to see in Civ VI. While it was hard to see because of the horrible balance and execution (seriously, who thought it would be a good idea for science stealing to be based entirely on tech cost?), I think that BEs covert ops system is, in terms of core principles, the best in any civ game I've played. Civ IVs system had a wealth of options, but far too many of them were frustrating to the target while imperceptible to the attacker. Civ Vs espionage worked well for its intended purposes, but it lacked not only Civ IVs frustrating options but also options in general. BE, in contrast had attack options that were dramatic yet also provided options for counterplay, and its agents had a wide variety of interesting options. If these options were better balanced (and actually tied to the output of the target city), BEs system would serve as an excellent foundation for espionage in Civ VI. Ultimately, I think that Civ VI already sounds very busy for a vanilla Civ release, and Id be somewhat surprised to see these mechanics make an appearance. I dont think the possibility should be entirely discounted though, and Id be happy to be surprised. Im curious as to what others think about this. Is there a possibility of these mechanics returning? Are there other BE mechanics that would be a good fit for Civ VI?