Quan is my favorite character in MK and I'm hoping he has a big impact on Mkx's story. He wasn't bad in Mk9 but for some reason I didn't like his play style. All that meter building and unblockable traps....it seemed there was no room for experimentation with him. You just had to stick to that play style to be effective. So I ditched him for Sektor, who I found much more fun to play with. Quan's skeletal boost was also somewhat unusable, which was disappointing. I hope he is a more flexible character this time.
Edit : Boon tweeted that Scorpion and Subzero would have dialog. I'm assuming that's just before the match starts. Quan has so much history with so many characters, he deserves dialog with at least a few. Scorpion, Subzero, Noob, Shang and Shinnok are all possibilities. It would be so cool if we had it.