She'll probably pull a Jim Jeffords if Democrats control the senate after November.
Yeah, what's pretty interesting is that more Clinton 2016 voters approve of her than disapprove, so I actually wouldn't be all that surprised if polling convinced her to change parties because if AK doesn't make the switch to RCV, then she'd definitely lose a Republican primary again a-la 2010.
And if she does become an Independent who caucuses with Democrats, then - without having to support McConnell &/or win over GOP primary voters - I have a feeling she'd be no more conservative in the Senate as an Independent Democrat than Manchin or Sinema have been, not least because there's literally nothing wrong with having Manchin-style Democrats in states like WV & AK since her being another Manchin is much more preferable than her keeping the (R) next to her name.