If I get a new Xbox will I be able to sign in with my old account and still have all my...

Yes you will. Everything is tied to your account.

Yes, i still have my old xbox and all the apps. Luckily, i can still play WOT on my old xbox. I wanted to upgrade the reason i purchased the new xbox. I am using the same original email and password when i created my profile into the new xbox including this
one to be able to converse with you. My dilemma is i cannot undo my mistake of using “Bludragun313”as my gamertag on the new xbox because the new xbox would not allow me to use my gamertag”” even tho i am using the same email and the same password
.

i can go online and see my account for “bluedragun13” still active again using my original email and password to sign in.

I am planning on buying the new xbox series s, but the problem is that my old account was permanently banned for an act I did not commit. I did two refunds and they claimed it as marketplace theft. Anyways, on my current xbox I am still able to
use those games but am wondering if I switch to the new xbox can I still acess those games because they are all on the account but the account is permanently banned so can I even sign that account in?

I doubt you can Since You are basically Getting a new one the data wont carry

I want to switch the email from my older more used account, to my newer email, but I cannot seem to do so, since a Xbox account has automatically been created. How can I delete the Xbox account from my new email, so I can use my new email to replace my old Xbox account? (This whole thing started with me not being able to sign into my EA account, cause my Xbox account was signed into an older email.)

You cant. The Microsoft account IS the Xbox account. They are all one in the same.

Hi all,

When I set up the xbox 360, it was for my son, and I used my email address, as he didn't have one. Now he's got an xbox one, I've been given his old 360 and games. However, when I sign in to xbox live, I see his list of friends and achievements. Can I move
my xbox live account to my own gamertag?

Thank you!

You would need to make a new Xbox account in the "add new" section when signing in but that would require a new email to be able to create the new account.