Police are conducting further investigations into the case.
Dr Jim Swire is unconvinced and believes it's an attempt to stymie the calls for a public enquiry, since they have stated that they won't be pursuing anything that compromises Megrahi's conviction.
Abu Talb has recently been released from Jail in Sweden, where he was serving a sentence for carrying out bomb attacks, and his lawyer has released documents relating to his case.
Talb was the bloke who was given immunity from further prosecution if he gave evidence against Megrahi, and he was also the first suspect identified for the crime.
The same clothing found in the suitcase that held the bomb on Flight 103 was found in Talbs apartment, also in there was a 1988 calendar with the 21st of December circled.
The Maltese shopkeeper (Gauci) also originally identified Talb as the man who bought the clothes found in the suitcase (the same ones found in the apartment), but changed his testimony and now lives in Australia, living off the $2,000,000 the US Department of Justice gave him in return for his testimony. (Now that alone stinks to high heaven, in my opinion)
Anyhoo,
It's just more political manoeuvring I think.
Megrahi was most likely jailed to further a political aim (war/oil) and he was probably released to further a political aim (oil).*
Underneath it all, the case is probably quite a simple one.
But so many Governments have interfered in it over the years, that I think it's unlikely we'll ever know the true details.
*I was thinking that if you changed the name of the resource (oil) and shifted our recent history to some time in the far future, someone could probably get a decent Science Fiction book out of it.

Then I remembered Dune.

(I think I'll read it again and change the word Spice to Oil and see how it pans out.

)