Yay or nay?
I am also thinking about the tone set for the play-through;
I really dislike how most playthroughs at the moment exist of 1~2 hour long video without any cuts and edits, using cheese armies (full stack rorarii) with the sole purpose of playing is to win as efficiently as possible, while I think it's much more enjoyable to use roleplay to justify certain army compositions. I'm not saying it's not fun to roflstomp the game with cheese, but I would like to bring a challenge in the play-through by playing more "accurately" and forcing myself to capture certain settlements, declaring war and making peace etc.
Using hastati/principes/triarii and having them reshuffle during battle, deploying Latin cavalry on the right flank and Alae cavalry on the left etc etc.