I'm honestly not sure o_o I don't notice these things!
In regards to inflation/deflation, depends when you were last here D: Were you around for the halloween event that brought about a lot of OCAs? Cause that made a ton of OCA-drop cards go way down in price.
Some SQI ingredients have gotten tougher to hunt down, MVPs aren't spawning like they used to - their exp and their spawn times need to be fixed - GMs have that on their to-do list though.
Ad prices have climbed to about 1m - 1.2m each, meaning most ad-shop-purchased items are a bit higher in price.
Celebs have gone down in price to about 40-43m..
Lots of non-trans castles were closed and some WoE castles have been changed around since the eA switch, (we're eA now, btw). There's a list somewhere, you can probably search for it :O