They don't do estimated waiting times attraction-by-attraction, but they give you "best park" and "worst parks" for each day, and each day gets a numerical rating based on the estimated worst wait times for the three Mountains at MK.
In other words, if a day gets a "5", that means they anticipate the longest wait at any of the Mountains on that day to be around 50 minutes. If it's a "7", that would be 70 minutes.
The particular page all this stuff is on
is here.