I think it'll be positive- those of us who don't approve of the cascio tracks have, I think, just sort of accepted that they're going to be there and we've made our peace by deciding not to buy it.
I don't approve of them, but when DYKWYCA and Much Too Soon came out, suddenly no one cared about BN and we were all just happy and excited. I think it'll be like that. And I've seen MJ dragged through ish before, and somehow he always gets new fans even in negative circumstances (Bashir, the trial, etc), so I think good will come of it
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PS- PLLLLLEASE no one attack me for my opinion. If your opinion is different, that's totally fine, but please just state your opinion and not make it about me *coughCPounderscough* (sadly, I'm thinking I need to put this at the end of everything I write on MJJC now :/ ) .