Adding Hivesigner/Keychain is not planned or even possible. In the past we offered this option and users constantly had issues with it. We are very happy with our current login/signup process. Users can use email/password as they usually do on any other website. Furthermore neither Hivesigner nor Keychain are compatible with our platform. We solely rely on the user ids provided by our user pool to associate content with creators. These ids are derived from time of signup, the creators email and a random string value. It is therefore not possible to integrate Hivesigner or Keychain as a login provider as the same HIVE account can be connected to several 3Speak accounts. (Example: The entire 3Speak team has their personal account and the @threespeak account available to them) Ever since we removed Hivesigner and Keychain and replaced it with our current login/signup process the number of tickets by people that couldn't sign in / sign up have gone back by almost 95%. A few days ago I finished my work on the password reset feature which was one of the last few things I wanted to add for a while now. While Hivesigner / Keychain might work for tech savvy people like you we want to offer our products to everyone at ease without requiring them to learn about the 5 different keys (including the password / seed ) or installing a browser extension.
Once you are logged in with your 3Speak E-Mail account you can connect any number of your existing HIVE accounts using your posting/active key and Hivesigner btw. I chose to add Hivesigner in this place as people that have multiple HIVE accounts are more likely to be familiar with the ecosystem.
For a login without email you will have to wait for the DAPP.