Ideally I would like at least one more MK4 character in addition to those you just mentioned, Reiko or skinny MK4 Kai... somebody just for a bit more variety and depth for the MKX roster. (At the moment I think it's shaping up nicely.)
The only pre MK4 characters I'd to see return at this point are Reptile, Millena and Liu Kang.
I'd be lying if I said I wouldn't be really disappointing if Johnny and Sonya are in. I don't really see what they could bring to the story at this point (if they are playable.)
Before anyone says anything disparaging I understand it's heavily hinted "they" are in so just chill, It's just my opinion and I don't speak for everyone.
Non playable characters in story mode, I am all for it.
I can't think of too many better characters that would set the tone and establish a standard for non playable characters to finally have a prominent role in MK's story mode.
How many are willing to compromise for this?
Liu Kang is the 1 character that NRS seems to be saving for last to be revealed,
if at all, which is why I'm hoping for a roster leak.
I don't think he "died" in MK9 (just badly injured), per se, as Raiden had healing powers in MK9 and I could see NRS exploring that angle.
Aside from Liu Kang, I really don't care if any of the other MK9 characters are in MKX or not.
I don't care if Sonya and Johnny are in or not.
On one hand, it makes sense for them to be in, due to the fact that they may start (or have a part in) the MKX story, due to Cassie being in and given that those 2 are the surviving heroes of MK9, along with Raiden.
On the other hand, if NRS doesn't want to include them on the main roster, make them DLC later on, or not include them at all, I also don't care.
The only non-playable / DLC playable character that don't mind being in the story is Goro, since he was previously a sub-boss.
Other than that, if they're on the main roster then people should be able to play as that character in story mode and they should have a part in the story mode, unless said unplayable character gets killed off in a cameo.
In other words, if Sonya and Johnny have a
playable part in the story, then they should also be on the main roster and playable in Ladder Mode, Online and 1 VS 1 for their fans.
It would be pretty f***ed up for NRS to have said character playable in story mode and tease the fans of those characters, only for those characters not to be on the main roster or even as DLC.
I'd be furious as hell if NRS did that with my favorite character (Sub-Zero) and only made him playable in story mode, and then he isn't available on the main roster.
That's f***ed up on their part, if they spent enough time making said character playable in story mode, yet denied the fans of those characters from using them in 1 VS 1, Online or in Ladder Mode.