as announced it will be 30 days free trial and then you start to pay after 30 days so eventually for any services you subscribe now will discontinue the individual service renewal
I believe any of your current service subscription inside Apple One bundles will stop renewing when you subscribe to Apple One (which gives you free trial 30 days)
I take example for my case currently with Apple Music RM14.90 + iCloud 50GB RM3.90,
my iCloud 50Gb renew on 28th monthly, Apple Music on 2nd monthly, if I subscribe to Apple one (I get free trials of 30days) on 5th of that calendar month, let say 5th Nov, my iCloud wont renew on 28th Nov, my Apple Music wont renew on 2nd Dec.... and my Apple One 30 days free trial ends on 4th Dec will be renew and require to pay
just my two cents only... have to wait when Apple release later
if it does happen something like above, we as users does not lose anything... the 30days free trial will become a period of transition...
thanks! cuz i’ve been trying to find whether if they have addressed this at the FAQ. shall wait for further announcement