[lathspell]

Interesting indeed,

If Sauron still had the connection with Melkor (which I doubt), I guess people would know this already. Galadriel for example said she strove alot with him in mind, looking in each others thoughts. Wouldn't she have noticed this connection? Denethor himself went to madness, but he didn't see Morgoth. He saw the greatness of Sauron's army and what he thought that was Sauron's army but wasn't (i.e.: Aragorn's fleet).

As for the Valar. I don't think Sauron was afraid of them anymore. He believed, as did his former master, that he would become Lord of M-e with the Ring. That he would sit on the throne of Manwe on another place. It is, in my opinion, folly to think so, for the Valar and their hosts of Vanyar, that must have grown as well on Aman, would be beyond his power.

But my question would rather be: would the Valar come to M-e a second time? They knew that they didn't capture Sauron when utumno fell and they had already sent the Istari. I don't believe that they would attempt another overwhelming attack on the another Dark Lord.
Maybe also because of the knowledge of Mandos, that there would be a Dagor Dagorath in which the fate of Arda rested.

greetings,
lathspell