Not really Pantheon has went from coming in 2020,2021, anticipated 2021, staffing shortages, SEAS business decision, inspections, now the general consensus seems to be SEAS will open Pantheon 2022, and that isn't solid or backed officially.
The goal post has moved as much as it ever has, considering we're now jumping a whole year ahead LoL

. AGAIN
Btw the plausible theories don't hold water when SEAS direct competition, is enduring the same circumstances as SEAS. All the while opening new rides and offering new events, right as we speak.