As others have said and I said myself only a week or so ago, the LCY domestic network will not move over and I don’t think even Stobart would attempt it.
There are one or two other more immediate opportunities though. The LCY-DUS route is in competition with BA and doesn’t necessarily need to be at LCY. Since STN lost the route a couple of years back, there is no link to DUS from East Anglia. A lot of demand on that route was heading outside London.
Another one is NQY - the LGW route must carry 250k or more annually. If transfer pax don’t make a significant portion of that it could be a no-brainer to switch it. At the very least the STN route would come back.
LCY-RNS can be binned.
I actually think a takeover would be more about Stobart becoming a significant aviation player than about grabbing a few extra pax for SEN. Apart from prohibiting routes to EDI, if there’s anywhere Stobart wanted to go to from SEN there’s not much stopping them already.
Interesting times.