I don't hang around Smashboards much these days, but I'd like to reaffirm my support for Isaac. I feel conflicted on his chances, there are so many things pointing both ways for him. I feel more optimistic than I have since before Smash 3DS was released, though. He's still rating high in polls (like
this one), the ballot is pretty much confirmed to have been for this game all along, his Assist Trophy is nowhere to be found (could he have been a planned Smash 4 fighter who didn't make it in time?), and the single most unlikely characters in Smash history has now made it (did Ridley get in by the ballot?!).
I wrote a neat moveset for him a while back that was inspired by Shulk's, where his neutral special would changed which Djinn he had set to himself and would affect his specials and Smash Attacks. I remember I had it so that F-Smash was called "Unleash" and would always unleash the djinn and put it on standby, and you'd have to wait a while before you could set it again. Same animation, but a different effect for each Djinn. There was one of each type of Djinn, and you could also choose not to use any at all, which mostly left him using the utility psynergy.
I do like the idea of him as a stage manipulator though. We saw an example of how that could work with Kragg in Rivals of Aether, and it'd be a really interesting archetype to bring to Smash.
As I was reading up, I noticed something about this and there's an important note on the page that I feel I should point out since it changes the results a bit.
Basically, the K Rool search term included here is about the
topic, not the term itself, which greatly increases the amount of results included due to including all possible translations of his name alongside it, and any other terms that are directly related / mean the same thing (like Kaptain K Rool, Kingu Kurūru , or even キングクルール , for instance). Meanwhile, if you use K Rool's name as a search term and not a topic, it's a bit of a different picture.
https://trends.google.com/trends/explore?date=today 5-y&q=smash bros king k rool,smash bros isaac,Isaac Golden Sun,/g/122mqnh2,King K. Rool
And even if you include K Rool as a topic instead of a search term, well, here's what happens with Golden Sun when you use it the same way.
https://trends.google.com/trends/explore?date=today 5-y&q=smash bros king k rool,smash bros isaac,Isaac Golden Sun,/g/122mqnh2,/m/028rvy