IAG would enjoy the discount if bmir remains unsold, so why would they want it sold.
Anyone hoping for a job with BA is hoping for a miracle. At best there may be some offers of a chance at the BA assessment and then maybe a job.
As far as Granite go you have to ask the question, leaving aside whether the finances can be raised, is a small independent airline based out of Aberdeen viable.
The people trying to buy the company are decent enough, but unless they have some plan other than just resurrecting Biz Air flying Emb 145's I can't see it working.