I imagine Jobs will be there. He'll probably avoid the stage in order to not upstage Tim Cook's first big event but Cook may ask him to come out briefly at the end or they might do a call like you suggest.
It’s very easy to look for supposed marks of manipulation and very easy to find many of them – even if nothing was actually manipulated. There are just too many weird artifacts and optical effects, not all of them are marks of manipulation.
What you linked to isn’t a smoking gun in any way. It’s utterly unconvincing.