The 757's are no longer for sale. They have decided to keep them, at least for now.
You are not safe from TDY in any base, if you are junior. If they can ever get the training department sorted out, it may get a little bit better.
For the person that asked about the virtual base, I would like to explain it to you but the company has never really explained what they mean. I assume it to mean there are no official bases, but your based would change from month to month based on the needs of the company.