Next time Lesnar returns he should be a heel. Whoever is top babyface (most likely Balor) should just get destroyed by Lesnar. He can play the role of not giving a shit about the fans or WWE
I think that's the next step for Lesnar, indeed - dethroning The Demon King.
After successfully making his return to the Octagon by defeating Mark Hunt and also murdering Randy Orton, Bork's bound for a high-profile feud the next time we see him on TV.