@_hazo
if it's like support for the LTE Apple Watch, we may have to wait a very long time to finally get RCS.
that said, is it really necessary to have RCS?
I do understand what RCS has to offer... but with all the messaging apps available, who needs RCS now?
iMessages on iPhone works really well... it has SMS as a fallback when iMessages is not available.
Other messaging apps works perfectly too... I use Facebook Messenger a lot to communicate with my familly... and I have friends that are using Whatsapp nearly exclusively.
So for me and the persons I know, RCS would have very little to no impact at all.