I think its obvious to most people whats computer generated and what isnt!, Han Solos head is CGI the rest of the scene content may not be (only Lucasfilm know the answer!) but I dont think due care and attention was used in adding these extra few seconds to extend this scene and I believe the changes stand out.

If we are being picky, its CGI "manipulated" then!

, primarily because Han Solos face looks unreal i.e. like hes wearing a rubber mask.

Its still quite obvious that it doesnt fit with the next shot, speculating about the cost of CGI work is a bit pointless and even if its an alternate take its irrelevant the simple facts are:

1) It is a new SE addition and not in the original
2) It looks fake
3) Looks very different from the following shot

Anyway Darth Editous decided to keep it in so its up to him, I wouldnt know how to take it out but if he ever returns to Star Wars again then maybe he could shorten it so this scene is back to what it is in the orginal. The rest of his changes are superb.