I would assume any claimant will have to make significant concessions to the various Burgundian states, much as Mary was forced to do with the Great Privilege. With Louis XI still around France is sure to try and grab as much as it can, presumably going after Artois and Flanders and of course the Duchy of Burgundy, which they are already occupying. John II of Nevers seems like a weak candidate, his only claim is based on male line descent, which isn't that important as most states don't have salic law, and yet he has no male children only a daughter so his claim by its very nature can't be advanced to his daughter. Yet neatly enough his daughter is already married to John I of Cleves who would be the heir by way of Marie, daughter of Jean sans peur.
I assume that Charles of Egmond, Arnold's grandson and OTL's Charles II of Guelders, will take, or at least try to take, that Duchy. He actually held it for a brief period in rebellion against Maximilian OTL and the Habsburg position is even weaker now. Of course it is annoyingly right between Cleves and the rest of the Netherlands so if John of Cleves does get the Netherlands then Guelders will definitely be contested. I don't really see Maximilian successfully pressing a claim. He's almost certainly going to try and and perhaps he could even strike some kind of bargain with Louis but the price would be steep. OTL Treaty of Arras gave away the County and the Duchy as well as Artois, I can only imagine he'd have to give up more without an heir by Mary. Its a lot to give up but then again he has the pressure of needing to find a new wife in order to secure the Habsburg succession. And he's not Emperor yet, nor even King of the Romans so his leverage isn't so great.
I could see some kind of deal brokered between France and Cleves where John II of Nevers gains the Duchy of Burgundy and maybe even Artois with the understanding that Burgundy, Nevers, Eu and Artois would fall to France on his death. The rest, the Netherlands and the County of Burgundy, would go to John of Cleves. And since he gave his Nevers inheritance to a second son OTL its possible he will partition his Burgundian territories. Perhaps a second son gains the County of Burgundy, which would be the least contiguous territory.