Possibilities that haven't been discussed yet:
Large GOP shift:
Maine- it just sticks out like a sore thumb demographically, more so than any of the Trump-voting Rust Belt states that get heavily discussed here
Rhode Island- see Maine, also the state legislature is just full of conservadems, almost to the degree WV was 10 years ago
Indiana- demographically favorable, loves trade restrictions, sort of dovish on foreign policy, could plausibly be the most Republican state in the country in 2032
Large Dem shift:
Alaska- Anchorage and Juneau, plus the native areas, plus potential energy industry revolt over GOP protectionism down the line
Oklahoma- much more socially conservative, but has large cities and majority-minority areas that would be voting Dem just about anywhere else, depends heavily on commodities industries that will be ticked off about tariffs, and there's the state/local situation over tax cuts and inadequate education funding. This is a very underrated long run possibility for Democrats, IMO. I could see it only voting for the Republican candidate by 8 in 2032.
Kansas- see Oklahoma, the only thing holding Dems back from a breakthrough is the economic boom
Nebraska- basically Kansas, but with a better urban/rural ratio for the GOP, however EV-by-CD will encourage Dem presence and investment in Omaha going forward. It wouldn't surprise me at all if NE-02 is in line with or left of the nation in 2020.
Basically, I see a lot of potential for the 19th century manufacturing (GOP) vs. raw materials (Dem) economic divide to reemerge now that protectionism is back in vogue.
I never thought about RI's trend. I think this will really be seen more on the state level than anything for the given future. I think it's more likely to transition to a swing state like Delaware was from 68 to 92
