mdman, I'm not the one who said what's chasing the Vasari, although I did do a great pic of a Space Pony Borg Cube. In any case, it's SivCorp that came up with the backstory, which is dangerous if a sequel or any type of storyline were to ever come out. I came up with my own idea, but I've just mentioned it in passing to others. Nothing more.
As for the other galaxy, depending on how far you want to say they can take phase travel, it can go either way. I would think that humans wouldn't be such a blockade if they could move over to another galaxy. I tend to think a touch more locally.