Okay, look.
The Crack of Time contains all of history, all of the present, and all of the future. That is correct.
In Xenoverse, history branches off infinitely, there exist infinite parallel worlds, and there are an infinite amount of possibilities. Therefore, the Crack of Time in Xenoverse is 2-A. In Heroes, the cosmology takes after the Super anime, and as such, there are only a seemingly finite history, a seemingly finite amount of present timelines, and an uncountable amount of possibilities. All of that points towards 2-B, and even then, has a character ever threatened the Crack of Time before? The only character who has even come close to that was Dark King Mechikabura, but even then, he only absorbed the existing timelines—the Crack of Time was not brought up, to my knowledge.