As I said elsewhere...
I'd only want it when it has the best chance of success, and the best chance of all fans following it rather than being fatally split, and us ending up with two shoddy failures of clubs, bigger failures than anything we've had until now. Even if people don't go to Sixfields, it doesn't automatically assume their attachment isn't to this club or nothing... and offering a choice won't make them jump ship to the alternative, as it'll still be a blatantly different club, much as Sphinx are. If the JR result came back in SISU's favour, and certain council practices had indeed been shown to be dubious, then I'd struggle to collude in killing off my club. If they came back against SISU, the club could still come back to the city. If however it bought land in, say, Cawston, there'd be an obligation to start a new club up, you'd get far more behind it, far more chance of it succeeding...
As long as the current club survives, because of how football works, that ain't going to happen that fans just switch, not until there's a drastic sense of permanence.
Couple the fact that football governance needs an overhaul in this country so fan conceived and owned clubs actually stand more than a puncher's chance of succeeding, and there's a problem. The system in this country just doesn't support fan owned clubs working long-term, it merely supports them as firefighting measures. The fans of Notts County, mansfield, lincoln... even Stockport etc. can point to the problems of swimming against the tide, even the 'success' that's Exeter relied on a lucky cup draw, and even now their fans grow more restless, seemingly unwilling to accept what they have - they should be careful what they wish for...
And that's not because I'm against the principle, it's because the system isn't overly suited. personally I've always thought an adaption of what we used to have/ the Arsenal model of days gone by are the best ways forward, where about 25% of shares are open to your everyday fan to buy, and no one person can own more than 25% of the rest of the stake; allows for benevolant dictatorship/ decisive decisions rather than the wringing of hands and buerocracy, but still enables some accountability, and stops one owner wielding absolute power and control.
Now, the alternative action is surely to abandon all thoughts of a fan owned CCFC replacement, but just set up a club that's fan owned, call it Coventry Rovers, say, have it play in red and green halves, set up the system of governance you want in a football club, see if they can grow on their own accord to a certain level.
Make history, rather than split it, for as long as the current club has a chance of coming back, you won't be able to claim their history, either absolutely or intangibly.