Its not proven but I think so... Zuko will make a great father also... and Mai will be a good mother because she really cared about tom tom. I hope they do..
Improved Answer:
Yes, because if you remember the last episode, most of the people that were paired up in the tea shop got married. Most likely, Sokka and his girlfriend (who's name I have forgotten...) got married, and you all know that Katara and Aang got married then Toph found someone else to marry.
And also, logically speaking, he would choose a girl who's been through the most important phases in his life and who he actually reciprocated feelings for. So yeah, that would be Mai.
Mai is a definite candidate for marriage with zuko.
No one knows for sure but in Avatar The Last Airbender the fire book(season), Zuko was dating Mai, (not sure if they are now or not), hopefully we will find out in the Legend of Korra series. Mai did marry Zuko and they had a daughter, whoose name is unknown.
Mai and zuko because katara is already taken by sang
Mai
yes
Zuko's wife is Mae.Remember in the last episode of The Last Airbender Zuko married Mae.So those of you who think Toph married Zuko or Katara married Zuko are wrong, just not thinking, or are KRAZY
They are boyfriend and girlfriend.
We will never know for sure but we guess zuko marries mai
i think Mai is about 15 or 16 years old ,knowing that Zuko is 16.
Zuko rushes in to save Mai quite a few times in the last few episodes. Yes, also she does save him a couple of times too.
Only as a friend, the thing that Zuko and Katara are in love is total fanfiction, Zuko loves Mai and Katara loves Aang.
no zuko and katara never go out zuko ends up with mai and katara ends up with aang