#6 - Feb. 26, 2013, 4:06 p.m.
Yeah, your bank items stay because your bank is account wide so all charcters can access same one. I did the same thing to go from one server to another, deleted my one character and got to new server an created new charcter then checked bank an all my stuff was still in it. Only time you would lose stuff is if you were transfering a guild from one server to another then that guild bank goes poof an everything in it as well.
One note: I think the guild bank remains on the old world, and is there if the guild transfers back at some point in the future. I stand to be corrected if I’m mistaken, but that’s my understanding. Anyone know more about this for certain?
UPDATE: I’m going to track down the answer to that question. 
And thanks to you guys for posting the info on the world transfer and its impact (or non-impact) on the account bank.