Just caught up with the RSN’s Gait Speed program featuring Stephen Bell (per Monday's press release) https://player.whooshkaa.com/episode/381074 from the 8:25 mark.

He does make reference to differential stakes in the segment. A bit open ended and I'm not sure if this isn't something that might be similar to what was intended with the tiered system anyway.
I think we already have a commitment that prize money won't be less than $10.000 on a metro meet and remembering that best intentions way back were we might have a $10000 meet as separate to a metro meet.

Interpreting what Stephen said earlier in the segment where they didn't want to shock with too many changes initially, so I guess the door is still open.

Would be good, completely fine, if we had the three tiers, $4500, $7000 and $10000, where the classier horses race for the $10k. Classier within RBHS points ranges. Utopia would be turnover increases so we can have those $10k races without compromising lower grades.

Many already suspect the number of $4500 races have increased.