It's different from heightened and fits best in another blog.
As to individual spells, we'll reveal more over time. Since you mentioned pattern spells, they no longer have a Hit Dice limit or the like, which is an extremely good thing for all the patterns except color spray (seriously, I never prepared them in PF1 but they are cool in PF2), since most of them had limits that were quite low. But of course we said in the other blog that we were going to cut down on save or lose (especially at 1st level spells), so color spray serves more of a debuff role most of the time. On the other hand, it does so handsomely for a 1st-level spell, so your foes in the cone should expect to at least suffer a round of miss chances unless they are very lucky. Grease is pretty much grease, though in total it's probably going to be easier to trip most targets with it and harder to take away a weapon-using PC/NPC's only weapon and essentially auto-win.
Grease is the word.