Sharon Carter's reveal as the MCU's Power Broker could open the door for the return of one villain from Netflix's Jessica Jones. The Falcon and the Winter Soldier brought Sharon Carter back to the MCU after she had been missing since Captain America: Civil War, revealing her to have been living and working in Madripoor as the Power Broker over the duration of the Blip. The ending of the Phase 4 series teased a dark future for Carter in the MCU, as she now has access to high-level secrets, prototype weapons, and advanced technology ready to sell to the highest bidder.
https://screenrant.com/mcu-power-broker-super-soldier-serum-will-simpson/