What do you think Jack is? Need help.

Manchester terrier and lab ... wow.  that'd be unpleasant for her!

I'm not sure, he certainly is adorable!  If I hadn't read what you'd said I'd say a husky mix.  how big is he right now? He's 8 weeks and how big is he?
 

They really don't know what or who the father is. He's only 8 lbs. at 8 weeks.

Definitely looks like some kind of husky too.  He's adorable.  I love the markings on his face, so unique.  Congrats on your new little one?

He should end up medium sized, at that weight, is my guess. Maybe about 40lbs'ish?  I don't understand the manchester terrier thing, though... that's a toy breed, full grown should not exceed 12lbs.  Anyway.  I'd still guess a husky mix.  Something about him just looks it! :)

Very cute puppy, congratulations on your new family member!
 

he kinda looks like a blue heeler

Rescues can get really creative sometimes -- husky = big and if they wanted to make the pups more marketable they would hope 'manchester terrier' because it's black/white/tan and smaller??  If it was a terrier and a lab mix with mom being the small one, it's a wonder she lived thru the delivery!!

I'm seeing husky too.

It's theoretically possible that the husky look is coming from a klee kai, if the mother was a manchester terrier/klee kai mix.  (Both small breeds.) 

reminds me of a heeler mix  as well

manchester terriers aren't very common, it seems odd that there would be a mix of one

Ditto with klee kai- neither are common enough that you see many mixes of them at ALL. If mom was say, an oversized min pin or minpin mix, it'd be a LOT more likely- or heck, even a small Dobe mix.

I wouldn't bet heeler- his color is filled in an awful lot already for that- but husky x shepherd x BC or Aussie wouldn't surprise me much at all

8 pounds already? He'll be medium sized- I'd bet in the 50 pound range, which is just about right for a husky X.  

I agree on the Husky, maybe with Aussie or Aussie mix. I would suspect the rescue made up the manchester terrier part.

Sera_J

 He should end up medium sized, at that weight, is my guess. Maybe about 40lbs'ish? ...  

 Maybe a little bigger- Caleb was 10 pounds at 8 weeks.  At 16 months he weighed in at 62.6 pounds. 

...I don't understand the manchester terrier thing, though... that's a toy breed, full grown should not exceed 12lbs. 

There is a standard variety of Manchester Terrier, too.  According to the AKC website, standards should weigh between 12 and 22 pounds.  Keep in mind that's for a show quality dog. 

I agree with the others, what ever he's mixed with, he's cute.