It's a typo (or the writer doesn't actually know the real phrase). It should say "with all in tow". They're referring to the fact that this year a couple of people missed it (Papa and Isabella) so they're hoping that next year everyone will make it. We use "in tow" to mean "with us". Considering the writer barely used any punctuation, messed up the ellipsis, wrote "too" instead of "to", and omitted the apostrophe from "year's", it wouldn't surprise me if they simply don't know how to say/write the correct phrase.
I'm coming to your party but be warned I'll have my cousin in tow.
When she goes to the supermarket, she has eight kids in tow. It's chaos.
The doctor is doing his rounds with four medical students in tow. They're going to learn a lot.