Looking back at the info that we did get it appeared we agreed the deal in principle but without knowing the full details it might simply be a case that the deal was agreed subject to us being promoted. As buying the club with less than 1m revenue in the 3rd tier would be very different than buying a team in the 2nd tear and the 6m revenue that comes with it. Plus the all important 1 good season away from Prem riches.
It may also be a possibility that while all parties want a deal done asap they didn't want to action any changes to the set up mid season to cause any level of disruption that could cause distraction from achieving promotion so the take over is deliberetely being held off.
The people working in Rigalettos were told a while ago that the take over is happening and they will be working for effectively a new employer shortly. I haven't heard anything since to confirm it's still or if there has been any issues.
My guess would be if things had gone really badly and the deal had fallen through then we might have heard more rumblings, so I'm thinking that no news probably indicates that it's still going to happen eventually.