Long time no post, it's weird to come back.
From reading about the upgrades, it feels like that Vekoma may be testing out some stuff on this ride. Probably in anticipation for a next generation SLC. I predict that it will be simlar to Steel Phantom's Upgrades. Parts that are in low-stress areas will remain the same, such as the end brake run, the station, and the lift hill. New track will take over once the lift hill deposits you onto the first drop, where it switches from double tube to single tube track. I predict the layout to have most of the current one intact, except having the transitions start sooner, and go on for longer, since with newer bending technology you can have it start sooner than later. The SLC looks like it uses 1980s Arrow bending designs, which wasn't state of the art even in 1993. Since they are starting with a ride that has known variables, and a well defined "off" season, with space around it to store parts, and a customer that has always tried to keep their vekoma rides in top-notch condition....i predict this will turn out well. What other SLC Operator would swap out the cars or the revised ones? What other Boomerang Owner that isn't a major chain would swap out the cars for non arrow-style ones on a nearly 30 year old ride?