I think I should elaborate more on "Erdrick is Incineroar 2". I initially wanted to say something like this in Erdrick's own thread, being a victim of what, if this trend continues, the "Incineroar Effect", or maybe the "Shulk Effect" if the ESRB Leak situation does anything.
This is hitting a lot of the same beats as Incineroar did back during pre-release speculation, due to the great speculation bottleneck that was Box Theory. A character many people aren't fond of, whether it's for competition reasons, a dislike of the design, overrepresentation of something (Pokémon or JRPG's), or anything else is now backed by leakers. Many, many leakers already know about this character's inclusion, but a subsect of the fandom has had enough of leakers bottlenecking discussion and killing speculation (as there's not much to speculate over besides the roster, especially now that slots are back and we have a very, VERY precious 4 remaining). So here comes the theory of "leakbait": something to weed out leakers by implanting false information. Who, of course, happens to be the guy the insiders and leakers are telling us about, rather than it being anybody else. Erdrick really reminds me of Incineroar, somebody who lost the chance to be a surprise a long time ago, and is now dreaded because he will keep too many leaks alive that throttle speculation. People took ANY, and I mean ANY excuse they could to prove Incineroar wasn't in, and with Erdrick, that unfortunately seems to be happening again.
Now watch us get a Grinch Leak 2 before the next Smash reveal, especially if it's in a Smash Direct. Let's say "Version 4.0.0 will add 5 new bosses (Dr. Eggman, Sephiroth, Necrozma, Gruntilda Winkybunion, and Duon) adds an extra stage button, boss battle mode, gives all spirits descriptions, adds 28 new Final Fantasy songs from across the whole franchise, three new assists in Cait Sith, Goro Akechi and Mumbo Jumbo, adds 10 Mii Costumes including NiGHTS, Billy Hatcher, Steve, Master Chief, Tifa and more, and last but not least, or rather most importantly of all, Brave is Banjo-Kazooie with a Grunty's Lair stage, with a tease for 5.0.0 adding Platformer Mode and somebody who confirms spirit promotions (Bandana Dee, Shantae, bonus for Waluigi also confirming Assist promotions)"-tier levels of "make the Smash Fandom hope like hell this is real", which will probably bring back the people splitting into #TeamReal2 and #TeamFake2. Bonus points if it not only turns out that the above (intentionally ridiculous) leak is fake, but also that we get Dragon Quest and Dragon Quest only when it's time for the reveal, and if it's pathetically easy to figure out it's an Erdrick reveal within the first frames of the trailer. Then it would literally be Incineroar all over again.
I think that, considering I thought Arle was extremely likely, that there's no real big argument against him, and considering his competition is dropping like flies, pretty much Slime, Lara Croft, the Luminary, and Gex are the last people who still have a chance against Erdrick, and let's not kid ourselves, Gex is probably not happening. Of course, this assumes Square Enix will be a part of the pass. It's entirely possible they're not! But with all the insiders saying that we're getting a Squeenix character... I believe we are, or at least, we will get some DLC content from Squeenix, even if somehow it's not part of the pass.
The funny thing is, Slime vs. Erdrick is pretty much Sans vs. Frisk. One of them is more immediately distinctive, is drastically more popular, and the face of the whole series (though while Slime is uncontested, Sans shares this spot with Flowey and Papyrus). The other is still iconic and notable, is the primary playable protagonist of their game (and both are in series with rotating protagonists), and tends to get little respect for the possibility of an interesting moveset when it's there. Yet people champion Erdrick over Slime while saying Sans is more likely than Frisk. I, myself, think Frisk and Slime are more likely... peculiar. Wouldn't Frisk and Erdrick, or Sans and Slime, make more sense?
...I accidentally wrote an essay. Again. Though it isn't anywhere near as good, or as long, as my last one.