Note that this variant of the trailer doesn’t feature the Ice Age 2: The Meltdown logo, but rather text saying “To Be Continued...” at the end. Also, there’s no 20th Century Fox logo at the beginning, nor the print logos for TCF and Blue Sky at the end.
Was wondering where this exact version came from, and judging by the potato quality, it more likely came from a DVD by 20th Century Fox Home Entertainment around mid-late 2005/early 2006. I say this because the user who uploaded it wouldn’t tell where he got it from.
Found the same clip from a different account and their description says it's from their vhs copy of Robots, someone in the comments also says that this clip was on their VHS copy of Winn-Dixie.
The difference of course being that the one you posted says "To be continued" and the one I found just showing the Ice Age logo...I'm kinda wondering why the variation exists? Did some copies just say "To be continued" instead of showing the logo? Weird.
So after reading wikipedia about the movie, the name of the second movie went from Ice Age 2, to Ice Age 2 The Meltdown, and then just to Ice Age The Meltdown. So the video I found was when they still had the title as Ice Age 2 The Meltdown. I think the "To be continued" clip has to be from an earlier promo.