Avengers: Age of Ultron concept images.
Quicksilver:
Scarlet Witch:
And, Ant-Man pic:
First off, THIS IS HOW YOU DO QUICKSILVER. Its simple, its blue, it looks streamlined. Easy. No fucking leather jackets, no all silver emo hair that looks stupid. Just a great, modern take that is believable. My one gripe is no white/grey hair, but maybe they tried it and it just didnt look right, or he will get the white hair gradually, who knows. Still, its a billion times better than the abomination that is the X-Men Quicksilver.
Scarlet Witch looks fantastic too, sort of an eastern European gypsy look with the beads, necklace and the tatty skirt, I think its fantastic. They can always have her in a more traditional outfit afterwards too, so its a brilliant early glimpse at what they will look like.
Ant-Man pic is from the comic-con footage that was leaked, so not a new one per-se, but still its a proper crisp look at him and I think, again, Marvel have fucking nailed it.