I would be sad to see the sidecars go. At some parts of the corse they are amazing to watch. I think the 2 extra big bike races are to please the new TV world audience. Where sidecars are seen as old fashion and have no ties to Street machinery. If the do go and are to be replaced what is needed in my opinion is a race with a set cc limit with no mods except brakes  shocks and maybe fork internals. No engine mods. A safer and cheaper way to go racing. Maybe they should be asking some racers what would be the cheepest and safest options. The super twins where ruined by the Patons and KMRs. When someone said they could do the the 3 laps without a pit stop on a sv they all stamped there feet and had forced pit stops.