Re: Avengers 2 and X-Men DoFP are both using Quicksilver and Scarlet Witch
Avengers 2 would have been rewritten anyway. Joss has only mentioned a first draft. At this point its just as likely that the twins are taken out as it is they stay in.
Deadpool 9.5 | Batman v Superman: Dawn of Justice 7.5 | Captain America: Civil War X.X | X-Men: Apocalypse X.X | Suicide Squad X.X | Doctor Strange X.X
Tradition is just dead people's baggage.