Short Answer: No
Long Answer: The base rotation stays the same regardless of level. Apart from some oGCD and utility skills along the way to 70, nothing fundamentally changes with RDM. As an aside, once you unlock the ability to rez, everyone will be on your ass to rez. Be it 1 rez or 100, you will be asked to rez whenever someone dies and to hell with your DPS and your rotation. NOW REZ ME!!!!