Multiclass archetype thoughts:
Would there be any issue with combining the Basic/Advanced [class] feats into one? i.e. Remove the Basic one entirely, and reduce the Advanced feat's level to 4.
While it would allow a character to bypass the 1st/2nd level feats of their multiclass if they wanted to (although I'm not sure how much of a problem that might be, if any), it would also reduce the overall word count a decent amount. And considering how wordy this edition is shaping up to be, that could matter a lot.