Ohh good question!! I don't know because where the book ends she is still a child (yes not a normal mortal everyday child) but still its a little weird thinkin yes or no to should she be with this teenage shape-shifter/werewolf just yet..
I think if the imprinting thing is a strong as it is for the others it has happened too tho then they will always have that bond till she's old enough for it be be "them together" =D
It sounded like she would be an adult in a matter of like 5 or six years. Jacob is only 16. It is still really weird since he was totally obsessed with Bella for the majority of his life (not to mention the kissing) to then go and imprint with her daughter?!?! But hey everybody deserves a happy ever after right. They are both half human.