I have not heard of a change on 97W Ku. Looking at the RTPi website they say it's on 12125H on 97W but that's likely a typo of 12152H, as there's no transponder on 12125H
On the other hand, RTPi has a new frequency on 55.5W C-Band, at 4112, if I remember correctly. Last I checked it was in double illumination with the old transponder, but the new one is the one that's listed on the RTPi website
and yes, would be nice to get RTPi in HD