How could you think we're not getting anything that was in Awakening?
Well, technically we already got something from Awakening.
How do you know for certain we are? Ike's games sold like garbage but he still got in. Sales are pretty much meaningless.

[insert every other character confirmed that's not Toon Link as well]
Still doesn't change the fact that Sakurai doesn't have a problem with clones existing. Roy potentially being a clone isn't as much of an issue as you're making it out to be.
Funny how he was so low priority in Brawl's time that he got cut, isn't it?
Welp, guess Mewtwo's not coming back. Sorry guys, but he was so low priority in Brawl that he got cut! That means 100% he can't come back.
It's also funny how 4/5 of the Melee to Brawl characters were clones...
It's almost like, they didn't deserve a spot in the first place, and adding nothing to the game... OH WAIT, THAT'S EXACTLY WHAT HAPPENED!
So why didn't Roy deserve a spot in the first place exactly?
Well, like you mentioned, Toon Link came back and stayed a clone. So far, we've seen nothing of the sort. No reason to expect that.
Except for, y'know, those clones who got new moves and animations in Brawl to help differentiate themselves from the characters that they're based on. No reason Sakurai couldn't do the same if he wanted to.
Really though, how would you make him unique?
Put more emphasis on the Binding Blade's unique abilities. Give him a projectile, a healing move, more moves that do stuff with fire, etc. Emphasize his glass cannon nature.
Of course, these are just basic suggestions. There are plenty of people who have done more and come up with whole movesets for a "de-cloned" Roy.
Yet they have no support. Which is different from getting few support.
I'm pretty sure getting few support is less notable than a lot of support(which is what Roy has, whether you like him or not)
Tiki has more story relevance and playable recurrence.
Camus has playable recurrence too. He was playable in gaiden, FE3, FE12, and BSFE. Plus, he's the closest thing The Pegasus Sisters have playable recurrence, as all three of them are playable in every FE Akaneia game (minus BSFE, though Cartia and Est are in that one).
Anna is in every game in multiple roles (except Gaiden).
Yeah, incredibly minor, non-plot important roles. Even her "big debut" as a playable character isn't that important.
They just don't compare or compete with Anna and Tiki.
Except they kinda do. Just because you say something doesn't make it so.
(PLEASE don not misconstrue this as me advocating support for Camus or the Pegasus Sisters. My point is that the things that andimidna points to for what make Anna/Tiki more likely than any other FE non-Lord are not unique to them and don't justify their placement on his likelihood 'tier list.')
Name a character that's more unique and gimmicky
How about Ridley? Big flying purple fire-breathing space dragon. That's pretty unique. What about Tingle? He's got some nifty abilities that could make him unique.
Unless you meant FE characters. In that case, a mage character would be pretty unique. Perhaps Robin or Micaiah if we stick to Lords, or maybe Gharnef if we look to villains. Leif could sure be unique, what with his canon ability to use every type of FE weapon besides Dark Magic. Hell, Camus could be unique. It'd be nice to have a dedicated spear-wielder from FE in Smash, plus the Gradivus has healing abilities that he could take advantage of in his moveset.
Makes them more viable.
Megaman, Villager, Rosaluma, Little Mac.
Doesn't change the fact that they(Anna+Tiki) aren't really that notable within their own series.
How about the polls done by Shortie that I mentioned? He's done more than one of those y'know.
Anyways, if Sakurai uses Smash speculation website polls to newcomers I'll be in complete shock.
If Sakurai uses that Facebook poll(which is what I assume you're referring to, because Anna didn't exactly tear up the Japanese poll, nor did Tiki really) or anything anyone says on Miivese to pick newcomers I'll be shocked too.
Yep, Chrom's back on top.
Barely. In the most recent tally he only beats Roy by about 20 votes. Not to mention Roy still outclasses every other FE character on that poll.
Chrom's always been the most speculated (not before Awakening though of course) and is far more requested than any FE character on Miiverse.
I find it curious you mention this. What metric are you using to gauge this?
But Shortie forgot to add Tiki until March, so whatever her score is (and I have no idea what it is) can't really be compared to anybody but Rundas, who I believe was added late onto the poll on the same day.
I think Anna is doing OK.
Anna didn't even get enough votes in the last poll to make it out of the "everybody else" category.
Why would you even want a clone that's a lord from over a decade ago? Did you like to play as him? You can just play as Marth, y'know.
"Why would anyone want to play as Falco? You can just play as Fox, y'know."
"Why would anyone want to play as Toon Link? You can just play as Link, y'know."
"Why would anyone want to play as Ganondorf? You can just play as Cap. Falcon, y'know."
To answer: because we like his gimmick(the Fire Sword), and recognize that has potential to be fleshed out into being more than just another clone.