Zamperla is not involved in Top Thrill Dragster. They are getting cozy with Cedar Fair, yes, but not that cozy. Allow me to be blunt.
The apparent Senzafiato overhaul is happening under a very specific and unique set of circumstances. It's a smaller coaster closer to Zamperla that they were able to scoop up as a side project and sell off at a low price.
The other week, through some personal contacts in Cedar Fair's college management program, I was formally briefed on what's happening to the attraction once known as Top Thrill Dragster. I have not been permitted to discuss details or answer questions, with one exception. That being, Intamin is the manufacturer working on the project. And this is fundamentally more than a simple ride overhaul.
The notion that Zamperla would even be involved in a project like Top Thrill Dragster is stupid. It's also insulting just how easily people can eat up this kind of misinformation. Step back for a moment and think it through again. We've seen ridiculous things happen in the industry, and this wouldn't be one of them.