Re: Quicksilver will not be distinguishable between Avengers 2 and DOFP
Borys Krit tweeted that Fox could only use the names Quicksilver and Scarlet Witch and Marvel could only use the name Pietro and Wanda.
Also, merchandising is different. Marvel/Disney have the merchandising rights to the characters I believe, so they could call them Scarlet Witch/Quicksilver in the merchandising without referring to them as such on screen.
2014 - Captain America: The Winter Soldier | The Amazing Spider-Man 2 | X-Men: Days of Future Past | Guardians of the Galaxy
2015 - The Avengers: Age of Ultron | The Fantastic Four | Ant-Man
2016 - Batman vs. Superman | X-Men: Apocalypse | The Amazing Spider-Man 3
TV - Arrow | The Flash | Gotham | Constantine | The Avenger | Hourman | iZOMBIE
TV - Agents of S.H.I.E.L.D. | Agent Carter | Daredevil | Luke Cage | Iron Fist | Jessica Jones | The Defenders