Highly unlikely that we'll get ANY non-Slash/Duff stuff over the next few years. They both most likely "have" to cash in from any near future release.
Yes, we've got Ritz91, but NOTHING official in live video shows from 1985-1990....so any unseen/unheard(!) Proshot and/or Marc Canter's vaults would be very enjoyable. For AFD 40th anniversary in 2027 a compilation from Canter's ca. 50 audio recordings and ca. 30 video recordings could turn into a great compilation from the early years. Add unheard demos from AFD we havent heard about. We didnt get any live stuff like that from the 30 anniversary LN'L release in 2018.
Axl would have to make peace with Marc first though.
Chicago92? Come on, we have this for over 30 years by now, all watched to death, what's the point?
If smth. from UYI should be up, it'd be cool to have some die hards getting involved and letting them pick selected shows WE know that WE dont have any audio/video from. Casue Guns hardly know what we do have or want. Or do a compilation from rare tracks from several UYI shows. A release like Flight666/Maiden did would be an cool option aswell, just add the "Perfect Crime" documantary and gold is out.