AMillionHP
[13] Hero
It's really not a bad thing they focused on more classic fighters than new characters, it also make sens because of SC6 story being a reboot like. And 2 fully new characters isn't really that bad, and those are new new no replacing anyone in the game.
Geralt can also be considered as a new character too, so it's 3 new characters, just like SC3 and more than SC4. SC5 had more but we also need to consider that most were replacements.
I'm already starting to seriously like Geralt with all the recent footages, i hope they be able to bring him back in the future in a way like Kratos with Aeon.
You just counted Geralt as a new character but didnt count Vader, Yoda and Apprentice.
I'd personally count Amy as new in 4 because the majority of the public didn't even have access to SC3ae and i honestly dont know what that movelist was like. If it was actually her SC4 movelist or if it was more similar to that generic rapier in SC3.
In any case, SC4 had 6 total movelists that were not available in SC3.