LA/MS/NJ/VA: no elections
AL: Reps win the semi-competitive guv election
AK: Reps keeps Senate, independent keeps guv.
AZ: Ducey wins re-election but Dems flip at least one legislative chamber
AR: Nope (i.e. there's nothing competitive here)
CA: Nope
CO: Dems flips the Senate
CT: Dems keep control of the state
DE: Dems keep control of the state
FL: Dems win a close guv. race and maybe win the senate, but not the house
GA: Reps. win competitive guv. race and keep control of state legislature
HI: nope
ID: nope
IL: Dems win guv race
IN: nope
IA: Republicans win competitive guv. race, keep control of legislature
KS: Republicans win competitive guv.race
ME: Dems win competitive guv. race and take state senate
MD: Dems win competitive guv. race
MA: Dems win competitive guv. race
MI: Dems win guv. race but Republicans keep control of legislature (though house could flip)
MN: Dems win guv. race and maybe take House; Senate not up for election
MO: nope
MT: Republicans keep control of legislature
NE: Republican defeats independent in guv. race
NV: Dems win competitive guv. race and keep control of legislature
NH: Dems win competitive guv. race and flip legislature
NJ: Dems pick up guv. and keep control of legislature
NY: Dems pick up a few seats in state senate to solidify control
NC: Republicans keep control of legislature
ND: nope
OH: Dems win competitive guv. race, Republicans keep control of legislature
OR: Dems keep control; outside chance of competitive guv. race
PA: Dems win guv. race and maybe flip house
RI: Dems keep control; outside chance of competitive guv. race
SC: Reps keep control; outside chance of competitive guv. race
SD: Reps keep control; outside chance of competitive guv. race
TN: Reps keep control; outside chance of competitive guv. race
TX: Reps keep control; outside chance of competitive guv. race
UT: Nope
VT: Rep wins guv. election, Dems keep control of legislature
WA: Dems keep control of legislature
WV: Nope
WI: Dems win guv. race and maybe pick up state senate
WY: nope
As a general note, I'm expecting a Democratic wave in 2018 similar to 2010 and 2014.