Robert1893: And, at this point, it seems clear they left saturation for Champion at 200 rounds. But one has to wonder, down the road, will they decide that was also "temporary"?
Probably, I imagine they left it as 200 otherwise TC would still have been empty (Icon excepted), but would have liked to raise it. When they get suitable numbers it may well change.
About this: We use an algorithm to determine when a player is eligible to move to a new tier, which takes into account a number of factors including number of ranked games played. These numbers scale by tier, so it's necessary to shoot a lower average to advance and to play more games to reach higher tiers. For example, when you reach Tour Master, you will need to play a larger number of ranked rounds than you had as a Master, maintaining a low average, to tier up to Legend.
So up to Legend that happens then you need 500 rounds at Legend and, for that to be true, at least 501 at TL. We already know it's not always true though with saturation at Champ' being 200 rounds. Perhaps indicating future change there.