Here is a link to Newsarama’s current interview with Waid and Van Lente about “Red Headed Stranger” and Mary Jane’s return. Here are some important bullet points.
*We will find out who remembers what.
*This isn’t like the Paper Doll arc, Mary Jane is back for good.
*It looks like they’ll be following Roger Stern’s views and using Mary Jane as a complication in Peter’s life.
*Her portrayal will mirror the pre-marriage issues instead of her 90’s and 2000’s stuff according to Van Lente.