Differentiating grey from silver, I think anything 29 and up is considered grey now. But silver as referenced by others is more like 55 or older. So currently, it would be mostly Boomers, but not to exclude anyone from the convention--welcome everyone.
I can picture golden opportunities for different generations of furries to learn from each other. The younger ones might learn that the older ones aren't just stodgy and racist, and the older ones would learn the younger ones aren't about participation trophies and instant gratification.
Everything would have major wheelchair access, and make sure there is plenty of con space for conversation. Video game tournaments could be Doom, Blockout, and Tetris. Fursuit dance DJ could play stuff like Herbie Hancock, Dis is da Drum, and Deodato, Super Strut. Lot's of medical/first aid personnel on hand throughout. Panels could run the gamut--everything you could imagine and beyond.
What other things should be considered?