All wheels XP based and otherwise have been removed. (Diamond, Gold, Silver, Bronze, Wood, Blue, Green)
No more game achievements, no more level up wheels (every 5 levels, including level 21)
No more for "complete all" in a particular slot (red wheel)
However a new Special Wheel has been added, this is awarded at random and is more likely to credit the lower RTP a game has, for easy example a 94% game has a higher chance of awarding a wheel than a game with 96% does, still can happen from ANY game tho and also at any stake, although again larger bet sizes carry a better chance of a wheel trigger.
It is stated than on average (roughly) every €3,500 wager will trigger a new special wheel
Prizes range from free spins of various amounts to also cash prizes €50/€100/€200.