Originally Posted by psylockolussus
I think Polaris and Dazzler would fit more to the First Class series. Polaris is Havok's love interest in the comics and a lot of people here wants to see Havok/Polaris as a love team in the movie. According to one of the writers of First Class, they considered including Dazzler in the movie and I think if they are gonna do a movie set in the 70s or the 80s, Dazzler would be very fitting because she's a disco singer and disco was very popular in the 70s and early 80s.
Polaris might be a good option for the 60s team in DoFP. Through her perception of the earth's magnetic fields, and any disruptions to it, she could help track down Magneto and would also be able to track and anticipate Azazel's teleportation (as Magneto did when he first encountered Nightcrawler in the comics). They could make her powers more visible, such as energy bolts.
The only problem would be the similarity to Magneto - and there will already be two versions of Magneto in the film.