With the new IMDb update that Dana Goldberg (Terminator Genisys) is now a producer on Terminator 6; on checking her IMDb account it says that the status of Terminator 6 is now in pre-production.
With news that Terminator 6 will be a sequel to Terminator 2: Judgment Day and will star original cast members; Linda Hamilton and Arnold Schwarzenegger, things are already looking more positive for the franchise. The pre-production of Terminator 6 will now hopefully allow the studios to finely tune the project in preparation for production and make sure the next movie lives up to the first two Terminator movies.