Well Abigail is just starting to go out of her heat and Wasabi is out. They may have pups the same time or a couple of days apart. It surely beats the 18 days that Fiona and Treasure was.
Why?
This means they would all play together. Fiona's pups didn't play with Treasure's pups till their very last week. That's disappointing. It's plain more fun when you can mix it up between moms and litters and looks like this time you will see why.
You can't plan heats but it looks like Wasabi and Abigail had theirs together. That means pups born same day or close.