Deep Space 8

Deep Space 8 is a Federation Starbase currently in the design phase. Design began in 2370 and the base was originally to be constructed along the Romulan Neutral Zone. However, the treaty with the Romulans during the Dominion War led some to question that decision. The current fate of the station is undecided.

(Why the station would be named Deep Space 8 when Deep Space 9 had already been in service for two years is unclear)

(RPG Game Book: Star Trek Deep Space Nine: Core Game Book (LUG RPG))