Ukitake also spoke with him around the time Ichigo used the flying item : Ukitake said: Ichigo was familiar basically. And Byakua said no, it couldn't be. Anyways... I have my own opinions and beliefs... but we will all know more once Kubo Tite returns from his 3 week vacation booo :C
Your entire post is unorganized and lacks punctuation and grammar so it's hard to read.
Ukitake did a double take on Ichigo because Ichigo so closely resembles Shiba Kaien. Byakuya told Ukitake that Ichigo had no relation to "that person". "That person" being Kaien.
I have watched up to the point when ichigo lost his powers. (vs. aizen)
but so far I've heard that he'll have them back.
when he does, does zangetsu return as well? or will does ichigo have a new zanpakutou?
Yeah Ichigo still has Zangetsu. A Shinigami's zanpaktou is a reflection of their soul. It's a part of them. So by definition, whatever zanpaktou he has now should still be Zangetsu. Also, he used Getsuga Tensho which further supports the fact.
I don't think Ichigo ever truly
lost his powers. I think they just went dormant after his FTG. What I've been thinking is that Urahara's white sword jump started Ichigo's Shinigami powers. Kind of like when you jump start your car with jumper cables, or when you shock a person's heart with a defibrillator. The massive amount of reiatsu that the Gotei 13 all put into the white sword "shocked" Ichigo's powers back to life and woke them up. It's just my assumption of course.
Anyways, it's possible he still has his Hollow powers. With Kubo stating that he intends to keep Bleach going to ~10 years it better still be a part of the story