Though it's looking like we'll at least make a run at Talos. We absorbed Miraaks soul, so his involvement may or may not be involved with the player character mantling Talos, just like Wulfharth may or may not have been involved with Tiber Septim. Really looking forward to upcoming dlc(s).
Soulmunching Miraak isn't mantling Talos. Taking part in an Enantiomorphic Event is.
Though technically, that's more mantling the Anu/Padomay/Nir event (which Tiber/Wulfharth/Arctus did too). There seem to be quite a few that the Dragonborn is taking part in... Tullius/Ulfric/Dragonborn, Alduin/Paarthurnax/Dragonborn, Harkon/Serana/Dragonborn... Maybe we have another with the DLC here? I'm still waiting, so I can't discern...