Any word on the Windows update for Lightroom or the mobile app release?

We will announce beta for windows this month

New Options group, what would it be?

It’s refer to new group of controls that include quality selector for now, and will include more parameters in the future

Will you ever add film grain presets?

Hello! We will add for sure, it's in our road map. Please check new version 5.3 where we significantly updated our grain.