I doubt that popularity is going to be a factor for inclusion for retros this time around. Sure Takamaru might be the most demands for a retro, but considering that he's still relatively uncommonly requested by people in general, that doesn't say much (this goes for Japan as well in where they're even less requested). Not that this hurts Takamaru, but it isn't a factor against other retros as well.
I don't see why popularity wouldn't play some factor, it did for Pit. I didn't mean to give the impression I thought it was the only important thing for retros, and Sakurai might put importance on other aspects more, but there's really no reason to think that even though popularity mattered last time it won't this time. And I meant Takamaru had popularity compared to other retros, not in general.
I'm not sure why we can't have two retro characters this time around. We've gotten two retros back in Melee and Brawl and it can easily happen again (and not because of a "pattern"). Sure Mach Rider is less likely than Takamaru, but he does have the advantage of Sakurai's bias. I also think that Mach Rider is going to be the series that Sakurai is looking at reviving considering that Takamaru's series will most likely receive a revival with Platinum Games (who has expressed interest in making a new game). Unlike Takamaru, Mach Rider as a character has also not been revived, so he's even more of a clean slate than Takamaru. I'd say that Takamaru is extremely likely to get in and Mach Rider has a good shot as well.
In the past one retro has been along the lines of Takamaru or Mach Rider, but the other has seemed to have some historical importance or connection to hardware, which neither Takamaru or Mach Rider really have, so... yeah we have gotten two retros in the past, but one of the two likely was added for something other than just being a retro, which is all these two can really claim to be. I don't doubt that we might get two retros again, but I think one of the two would be along the lines of G&W or ROB while the other (Takamaru or Mach Rider) would be comparable to Ice Climbers or Pit.
And I doubt Sakurai has actually made plans to make a revival game, he's just chosen a character that is capable of having a series revival, like Pit. In the statement all he said was the series would be like Kid Icarus in that it could be revived, not that he actually had plans to revive a series. Uprising itself wasn't planned by Sakurai when he chose Pit for Brawl, I'd say it's unlikely he actually has plans to revive the character himself. At least at this point. So really the character in question is likely just a character that
could see a revival, not one that will necessarily see one by Sakurai's hand, which really could apply to both Takamaru and Mach Rider. Also, Sakurai has waited at least two games to actually act on his bias, there's really nothing to say he'd act on it this time either.
I'm not saying Mach Rider doesn't have a shot, I just don't think we'll get both him and Takamaru.
While Duck Hunt Dog doesn't have a shot in hell, it won't be due to a lack of requests. Same argument could apply to R.O.B as well as he was barely requested, yet got in.
I was just arguing that DHD's potential inclusion wouldn't cause as much hype or demand as other characters, which volbound claimed it would. I agree there's more to inclusion than demand, but that's the aspect the argument was focusing on.