Battlegrounds S20

So will seeding be active starting S20? If Yes, then where do we start (Gold, Platinum etc..) if ending S19 in GC, and how much Elder marks do we get at the beginning of the season (after playing 5 matches)?
An official answer would be nice. Thanks
An official answer would be nice. Thanks
2
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So we should be able to assume that it generally applies next season, and that we will be awarded everything below P1 after 5 fights?