Palpatine, as of TPM, stands no chance against Valkorion. Even, as of ROTS, cannot handle him. However, with Darth Plagueis on his side, the duo might find an opening to exploit, if one of them does not falls earlier.
So, even if Valkorion looses his avatar, he would retaliate in disembodied form. Unless specified otherwise.
Originally posted by AzrongerHe needed the help of Plagueis to do that, and btw, they failed.
Influencing the Force on a galactic scale > influencing the Force on a planetary scale; having great dueling skill > having no dueling skill.
Midichlorians created Anakin of their own will, not through Palpatine.