The reunion speak does seem to have picked up, although I haven't seen anything significant that suggests things have changed. There are some minor things like old pics of Slash being posted on the GNR Facebook feed I think, plus didn't Del say or post something positive about Slash?

Minor shit really.

I guess with the end of the last tour cycle, Ron leaving and apparently the rest of the guys sacked (or you could argue probably just not being paid a retainer until it's time to tour again or something similar and less dramatic), the vacuum of info/communication gets filled with reunion rumours.

He could do this but then you would have to question his motivation for releasing new material (i.e. "old" new material).  If he did it without then touring/supporting it in some capacity then it's almost pointless, since he is unlikely to make anything via album sales.

Only way I see him releasing something is if he wants to tour again for some more cash with some hired Guns.  Releasing some new stuff might be a way to make it appear "fresh" and give some people a reason to come out and see him again in the hope of hearing and seeing something new.  Although I think even those people are pretty thin on the ground these days.

Yeah that's the first time I have ever seen his dad and heard him speak.

I suspected this was different to the other special they did as I heard Adler was also in that other one. Shame that one hasn't surfaced at all even though it's quite a few months since it came out.

I see Niven was co-host on Mitch Lafon's latest podcast.  He briefly addressed a couple of things re the recent Goldstein interview near the end of the podcast.  Starts around the 1 hour mark for a couple of minutes.