I would love hear such an album.
Slash & Richard on the acoustic guitar, Duff on the acoustic bass, Brain on the drums, Axl & Dizzy on the piano, Mel on the percussions.
Two oiginals (new or old) and two covers. That would be a perfect EP.
Correct. Axl and Matt Laugh are the best examples that Angus can hire new musicians without turning AC/DC into a cover band. The show will go on as long as Angus and Stevie are present.
I think they'll play a version of the RoB tour setlist. Most of the RoB tunes will probably replaced with songs from the new album (Realize, Shot in the Dark, Demon Fire).
I get your point but Axl is not ready to release a fully fledged GN'R album. Appearing on other musicians albums helps to improve his Image in the music scene. Slash is used to those collaborations, Axl only had a handful of them
Slightly off topic but I have a feeling that the ROB tour was the last world tour from AC/DC. They will probably focus on festivals and small club gigs (like they did in 2003) from now on.
Angus has more than enough material in the vault (co-written by Mal) to release one or two last albums. He should focus on that instead of a world tour.