Marvel Studios may be sitting out their traditional Hall H panel at SDCC this year, but Robert Downey, Jr. is at least ensuring that MCU fans have some food for thought during Comic-Con. Downey posted a cryptic teaser video on Instagram,

So yes, Doctor Doom does appear in First Steps. In the mid-credits scene, we jump four years into the future and see Sue Storm and her son Franklin reading together in their home in the Baxter Building.