This ESPN article has some more details on the revamped PGA schedule including going back to a calendar year season.
https://www.espn.com/golf/story/_/id...iv-golf-threat
The DP world tour is a bit of a wild card. As mentioned in this article, they are hoping to create closer ties between PGA tour and DP World tour with the new schedule and maybe some of these new events. If the PGA/DP solidify their partnership, and liv can't get any top 10 players to jump, it's hard to see liv lasting too long.
https://www.foxsports.com.au/golf/pg...10043995e56af1