So we got a surprise update.
In addition to the content we were expecting to get, we also got a free Rayquaza and two new stages.
One is a "Level MAX" challenge with Rayquaza. This is essentially a mini EB (only 45 stages), except it is designed around helping you get Rayquaza to the max level, giving you a Skill Swapper on the first stage for you to Skill Swap to give it Shot Out, and then there are rewards for the rest of the stage like RML's and Exp. Boosters to help you get Rayquaza to Level 15. Also the stages are designed that you use Rayquaza's Shot Out ability to have an easier time, and the stages across the challenge will drop enough PSB's to guarantee SL5 Shot Out by the time you get the final reward. There are boss stages, but compared to the EB's we have been putting up with, the boss stages are easy.
The other is an Ultra Challenge with Necrozma. Two hearts to play, 47k HP, fifth support in Unown-EX. It's a stage that is doable without C-1 but you need good skill boosted abilities so C-1 isn't a bad idea. Catch rate is bad enough that I failed to catch it with GB's before it ran away and had to get the 10k coins back through GB reset exploit. It's a Base 80 AP Psychic-type with Destruction (Destroys 1 Block and deals 5× DMG, goes up to 9× DMG with skill boosting and needs 200 PSB's to max. 80/90/100 Rates), and it takes up to 20 RML's.
Necrozma is a dumb stage, but the Rayquaza mini-EB is actually a good thing. Too bad I maxed its Shot Out with boosters a fair time ago for SM 2.0 reasons... -.-'