Timelines

The Dragon Ball SS series possess several alternate timelines.

Original timeline
The timeline of which the events of Dragon Ball SS took place.

Possible future timeline
The timeline where the events of Dragon Ball SS2 happened after Dragon Ball SS. This timeline exists as a possible future for the original timeline - as even though the events may or may not happen in the original timeline, they definetley exist as an alternate timeline.

Dark timeline
The unseen timeline from a cancelled story, in this timeline Olant lost to Barb in the Saiyan tournament, leading to a vastly different set of events.

True timeline
The timeline where the events of Dragon Ball MinuSS happen, it is intended to be set in the same timeline as the Dragon Ball manga, and so avoids contradicting it, or referencing any anime-only content.