Re: Love Interest for Captain America II
I honestly wonder if they'll even have Sharon actually related to Peggy in the MCU considering on how previous Marvel films have ignored certain key relationships between other characters. Case in point:
1. X-Men: They never allude or state Nightcrawler is supposed to be Mystique's child, or that Rogue is her daugther.
2. Thor: Heimdell's relationship with Sif as siblings is never established.
Thus if Marvel finds it too creepy as well but want to use Sharon somehow, they can either say that they aren't related and that Sharon just took up peggy's Last name as a homage to her; we could say that Sharon grew up idolizing Peggy's heroics back in World War 2 or something.