Hello, there! I’m Logan Bonner, Pathfinder Lead Designer, here to discuss some of the changes to spells and spellcasting in the remastered books, especially Pathfinder Player Core. James recently went over some details about the remastered wizard, and I’m going to cover the changes to spellcasting overall.
If you want to read some more on the subject, the Core Preview file goes into detail about the term “spell rank” replacing “spell level,” the removal of spell schools, the new spell format seen in the following examples, and some more information about focus spells and the remastered Refocus action.