Democrats go more populist to win in Appalachia and flyover country, Republicans focus more on suburban/exurban areas in blue states. Certainly an emphasis on inner-city turnout from Democrats in Oakland, Harlem, Detroit, etc. All the big states would be lean or swingy, so Republicans would do better in CA and Democrats would surge in TX. Maybe a map like this after a decade or so of PV elections:
Interesting. That has a very 1990's feel to it, when the 3-way allowed Clinton to really go all out for Appalachia/MS Valley while still holding the fort on the coasts. The electoral college is keeping the D's more libertarian and the R's more populist than they otherwise would be.