First let me say its great your back to writing.
And you have started a new saga based on a rather recent and well used plot tool of going back in time and changing things.
I see the cautious way you’ve set up Harry & Hermione which can bode well or not so you gave yourself an out if need be with the direction of their relationship.
If and I say 'IF' there are more added to Harries love life, make it a very small number. I’d add only one or maybe two more to Hermione here.
Since this will be a “Dirty-Harry” Harry so to speak, I’d add Luna Lovegood to balance Hermione and (I hope this will be surprising) Marietta Edgecombe! Yes the girl blamed for snitching on the DA to Umbitch and the Baby DE’s. Make her Gray to be inbetween Luna's and Hermione's views.
If only one, then keep Luna and have her be a go between of sorts with the ‘Powers that Be’.
Still I’ve not been disappointed by any of your stories I’ve read.
Kudos and I hope you update regularly!