As always, you nail it. The season is still young. She will make sure we have the most Conservative candidate at the front.
In Sept 2008 she had McSlime up about 8 points over the one. before Romney's slugs inside the campaign (Schmidt, Nicole Wallace) worked overtime to destroy her.
If it's Newt, she will campaign very hard for him (while at the same time, there will be Freepers who will insult and demean her efforts)
Coulter will be blabbing the whole time that Newt will lose, that Newt will lose.
She could virtually assure that Newt takes Obama down, if she joined him on the ticket.
Don't know that she'd do that (she has said, 'never again'), but who knows? Stranger things have happened, and this is one election we simply cannot afford to lose.
Even if she doesn't, though, we know that she'll be throwing her considerable weight and influence in his direction.