Would appreciate some advice on an award flight with the new United connection rules:

Outbound;
IAH-FRA
FRA-DXB
DXB-BKK
BKK-USM

Return:
USM-BKK
BKK-LHR

FRA-IAH

Would this be a valid routing? Would the open-jaw be possible?
I continue trying to learn, but every time I think I understand, I seem to not.